diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 80c55d9e..7b0c1a22 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release History
 
+## 3.1.5 (2021-06-27)
+
+**Fixed**
+
+- fix: decode brotli encoding
+
 ## 3.1.4 (2020-07-30)
 
 **Changed**
diff --git a/httprunner/__init__.py b/httprunner/__init__.py
index 97e4ba1f..658a0395 100644
--- a/httprunner/__init__.py
+++ b/httprunner/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "3.1.4"
+__version__ = "3.1.5"
 __description__ = "One-stop solution for HTTP(S) testing."
 
 # import firstly for monkey patch if needed
diff --git a/poetry.lock b/poetry.lock
index d1301a00..720e7faf 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,24 +1,21 @@
 [[package]]
-category = "main"
-description = "Asyncio support for PEP-567 contextvars backport."
-marker = "python_version < \"3.7\""
 name = "aiocontextvars"
+version = "0.2.2"
+description = "Asyncio support for PEP-567 contextvars backport."
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "0.2.2"
 
 [package.dependencies]
-[package.dependencies.contextvars]
-python = "<3.7"
-version = "2.4"
+contextvars = {version = "2.4", markers = "python_version < \"3.7\""}
 
 [[package]]
-category = "main"
-description = "Allure pytest integration"
 name = "allure-pytest"
+version = "2.8.16"
+description = "Allure pytest integration"
+category = "main"
 optional = true
 python-versions = "*"
-version = "2.8.16"
 
 [package.dependencies]
 allure-python-commons = "2.8.16"
@@ -26,12 +23,12 @@ pytest = ">=4.5.0"
 six = ">=1.9.0"
 
 [[package]]
-category = "main"
-description = "Common module for integrate allure with python-based frameworks"
 name = "allure-python-commons"
+version = "2.8.16"
+description = "Common module for integrate allure with python-based frameworks"
+category = "main"
 optional = true
 python-versions = "*"
-version = "2.8.16"
 
 [package.dependencies]
 attrs = ">=16.0.0"
@@ -39,29 +36,28 @@ pluggy = ">=0.4.0"
 six = ">=1.9.0"
 
 [[package]]
-category = "main"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
 name = "appdirs"
+version = "1.4.4"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.4.4"
 
 [[package]]
-category = "main"
-description = "Atomic file writes."
-marker = "sys_platform == \"win32\""
 name = "atomicwrites"
+version = "1.4.0"
+description = "Atomic file writes."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
 
 [[package]]
-category = "main"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "19.3.0"
+description = "Classes Without Boilerplate"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.3.0"
 
 [package.extras]
 azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
@@ -70,12 +66,12 @@ docs = ["sphinx", "zope.interface"]
 tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 
 [[package]]
-category = "main"
-description = "The uncompromising code formatter."
 name = "black"
+version = "19.10b0"
+description = "The uncompromising code formatter."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "19.10b0"
 
 [package.dependencies]
 appdirs = "*"
@@ -90,97 +86,101 @@ typed-ast = ">=1.4.0"
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
 
 [[package]]
+name = "brotli"
+version = "1.0.9"
+description = "Python bindings for the Brotli compression library"
 category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
-name = "certifi"
 optional = false
 python-versions = "*"
-version = "2020.4.5.2"
 
 [[package]]
+name = "certifi"
+version = "2020.4.5.2"
+description = "Python package for providing Mozilla's CA Bundle."
 category = "main"
-description = "Foreign Function Interface for Python calling C code."
-marker = "platform_python_implementation == \"CPython\" and sys_platform == \"win32\""
+optional = false
+python-versions = "*"
+
+[[package]]
 name = "cffi"
+version = "1.14.0"
+description = "Foreign Function Interface for Python calling C code."
+category = "main"
 optional = true
 python-versions = "*"
-version = "1.14.0"
 
 [package.dependencies]
 pycparser = "*"
 
 [[package]]
-category = "main"
-description = "Universal encoding detector for Python 2 and 3"
 name = "chardet"
+version = "3.0.4"
+description = "Universal encoding detector for Python 2 and 3"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.0.4"
 
 [[package]]
-category = "main"
-description = "Composable command line interface toolkit"
 name = "click"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 version = "7.1.2"
-
-[[package]]
+description = "Composable command line interface toolkit"
 category = "main"
-description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\""
-name = "colorama"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.3"
 
 [[package]]
+name = "colorama"
+version = "0.4.3"
+description = "Cross-platform colored terminal text."
 category = "main"
-description = "A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables."
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[[package]]
 name = "configargparse"
+version = "1.2.3"
+description = "A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables."
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.2.3"
 
 [package.extras]
 yaml = ["pyyaml"]
 
 [[package]]
-category = "main"
-description = "PEP 567 Backport"
-marker = "python_version < \"3.7\""
 name = "contextvars"
+version = "2.4"
+description = "PEP 567 Backport"
+category = "main"
 optional = false
 python-versions = "*"
-version = "2.4"
 
 [package.dependencies]
 immutables = ">=0.9"
 
 [[package]]
-category = "dev"
-description = "Code coverage measurement for Python"
 name = "coverage"
+version = "4.5.4"
+description = "Code coverage measurement for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, <4"
-version = "4.5.4"
 
 [[package]]
-category = "main"
-description = "A backport of the dataclasses module for Python 3.6"
-marker = "python_version < \"3.7\""
 name = "dataclasses"
+version = "0.6"
+description = "A backport of the dataclasses module for Python 3.6"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.6"
 
 [[package]]
-category = "dev"
-description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
 name = "fastapi"
+version = "0.49.2"
+description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "0.49.2"
 
 [package.dependencies]
 pydantic = ">=0.32.2,<2.0.0"
@@ -193,26 +193,26 @@ doc = ["mkdocs", "mkdocs-material", "markdown-include"]
 test = ["pytest (>=4.0.0)", "pytest-cov", "mypy", "black", "isort", "requests", "email-validator", "sqlalchemy", "peewee", "databases", "orjson", "async-exit-stack", "async-generator", "python-multipart", "aiofiles", "ujson"]
 
 [[package]]
-category = "main"
-description = "Infer file type and MIME type of any file/buffer. No external dependencies."
 name = "filetype"
+version = "1.0.7"
+description = "Infer file type and MIME type of any file/buffer. No external dependencies."
+category = "main"
 optional = true
 python-versions = "*"
-version = "1.0.7"
 
 [[package]]
-category = "main"
-description = "A simple framework for building complex web applications."
 name = "flask"
+version = "1.1.2"
+description = "A simple framework for building complex web applications."
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.1.2"
 
 [package.dependencies]
-Jinja2 = ">=2.10.1"
-Werkzeug = ">=0.15"
 click = ">=5.1"
 itsdangerous = ">=0.24"
+Jinja2 = ">=2.10.1"
+Werkzeug = ">=0.15"
 
 [package.extras]
 dev = ["pytest", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-issues"]
@@ -220,28 +220,27 @@ docs = ["sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-
 dotenv = ["python-dotenv"]
 
 [[package]]
-category = "main"
-description = "HTTP basic access authentication for Flask."
 name = "flask-basicauth"
+version = "0.2.0"
+description = "HTTP basic access authentication for Flask."
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.2.0"
 
 [package.dependencies]
 Flask = "*"
 
 [[package]]
-category = "main"
-description = "Coroutine-based network library"
 name = "gevent"
+version = "20.6.2"
+description = "Coroutine-based network library"
+category = "main"
 optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
-version = "20.6.2"
 
 [package.dependencies]
-cffi = ">=1.12.2"
-greenlet = ">=0.4.16"
-setuptools = "*"
+cffi = {version = ">=1.12.2", markers = "platform_python_implementation == \"CPython\" and sys_platform == \"win32\""}
+greenlet = {version = ">=0.4.16", markers = "platform_python_implementation == \"CPython\""}
 "zope.event" = "*"
 "zope.interface" = "*"
 
@@ -250,15 +249,15 @@ dnspython = ["dnspython (>=1.16.0)", "idna"]
 docs = ["repoze.sphinx.autointerface", "sphinxcontrib-programoutput"]
 monitor = ["psutil (>=5.7.0)"]
 recommended = ["dnspython (>=1.16.0)", "idna", "cffi (>=1.12.2)", "selectors2", "backports.socketpair", "psutil (>=5.7.0)"]
-test = ["dnspython (>=1.16.0)", "idna", "requests", "objgraph", "cffi (>=1.12.2)", "selectors2", "futures", "mock", "backports.socketpair", "contextvars (2.4)", "coverage (<5.0)", "coveralls (>=1.7.0)", "psutil (>=5.7.0)"]
+test = ["dnspython (>=1.16.0)", "idna", "requests", "objgraph", "cffi (>=1.12.2)", "selectors2", "futures", "mock", "backports.socketpair", "contextvars (==2.4)", "coverage (<5.0)", "coveralls (>=1.7.0)", "psutil (>=5.7.0)"]
 
 [[package]]
-category = "main"
-description = "http client library for gevent"
 name = "geventhttpclient"
+version = "1.4.2"
+description = "http client library for gevent"
+category = "main"
 optional = true
 python-versions = "*"
-version = "1.4.2"
 
 [package.dependencies]
 certifi = "*"
@@ -266,59 +265,55 @@ gevent = ">=0.13"
 six = "*"
 
 [[package]]
-category = "main"
-description = "Lightweight in-process concurrent programming"
-marker = "platform_python_implementation == \"CPython\""
 name = "greenlet"
+version = "0.4.16"
+description = "Lightweight in-process concurrent programming"
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.4.16"
 
 [[package]]
-category = "dev"
-description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
 name = "h11"
+version = "0.9.0"
+description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.9.0"
 
 [[package]]
-category = "dev"
-description = "A collection of framework independent HTTP protocol utils."
-marker = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"PyPy\""
 name = "httptools"
+version = "0.1.1"
+description = "A collection of framework independent HTTP protocol utils."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.1.1"
 
 [package.extras]
-test = ["Cython (0.29.14)"]
+test = ["Cython (==0.29.14)"]
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "2.9"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.9"
 
 [[package]]
-category = "main"
-description = "Immutable Collections"
-marker = "python_version < \"3.7\""
 name = "immutables"
+version = "0.14"
+description = "Immutable Collections"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "0.14"
 
 [[package]]
-category = "main"
-description = "Read metadata from Python packages"
-marker = "python_version < \"3.8\""
 name = "importlib-metadata"
+version = "1.6.1"
+description = "Read metadata from Python packages"
+category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
-version = "1.6.1"
 
 [package.dependencies]
 zipp = ">=0.5"
@@ -328,20 +323,20 @@ docs = ["sphinx", "rst.linker"]
 testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
 
 [[package]]
-category = "main"
-description = "Various helpers to pass data to untrusted environments and back."
 name = "itsdangerous"
+version = "1.1.0"
+description = "Various helpers to pass data to untrusted environments and back."
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.0"
 
 [[package]]
-category = "main"
-description = "A very fast and expressive template engine."
 name = "jinja2"
+version = "2.11.2"
+description = "A very fast and expressive template engine."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.2"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
@@ -350,25 +345,25 @@ MarkupSafe = ">=0.23"
 i18n = ["Babel (>=0.8)"]
 
 [[package]]
-category = "main"
-description = "JSON Matching Expressions"
 name = "jmespath"
+version = "0.9.5"
+description = "JSON Matching Expressions"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.9.5"
 
 [[package]]
-category = "main"
-description = "Developer friendly load testing framework"
 name = "locust"
+version = "1.0.3"
+description = "Developer friendly load testing framework"
+category = "main"
 optional = true
 python-versions = ">=3.6"
-version = "1.0.3"
 
 [package.dependencies]
 ConfigArgParse = ">=1.0"
-Flask-BasicAuth = ">=0.2.0"
 flask = ">=1.1.2"
+Flask-BasicAuth = ">=0.2.0"
 gevent = ">=1.5.0"
 geventhttpclient = ">=1.4.2"
 msgpack = ">=0.6.2"
@@ -377,124 +372,116 @@ pyzmq = ">=16.0.2"
 requests = ">=2.9.1"
 
 [[package]]
-category = "main"
-description = "Python logging made (stupidly) simple"
 name = "loguru"
+version = "0.4.1"
+description = "Python logging made (stupidly) simple"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "0.4.1"
 
 [package.dependencies]
-colorama = ">=0.3.4"
-win32-setctime = ">=1.0.0"
-
-[package.dependencies.aiocontextvars]
-python = "<3.7"
-version = ">=0.2.0"
+aiocontextvars = {version = ">=0.2.0", markers = "python_version < \"3.7\""}
+colorama = {version = ">=0.3.4", markers = "sys_platform == \"win32\""}
+win32-setctime = {version = ">=1.0.0", markers = "sys_platform == \"win32\""}
 
 [package.extras]
 dev = ["codecov (>=2.0.15)", "colorama (>=0.3.4)", "flake8 (>=3.7.7)", "isort (>=4.3.20)", "tox (>=3.9.0)", "tox-travis (>=0.12)", "pytest (>=4.6.2)", "pytest-cov (>=2.7.1)", "Sphinx (>=2.2.1)", "sphinx-autobuild (>=0.7.1)", "sphinx-rtd-theme (>=0.4.3)", "black (>=19.3b0)"]
 
 [[package]]
-category = "main"
-description = "Safely add untrusted strings to HTML/XML markup."
 name = "markupsafe"
+version = "1.1.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.1.1"
 
 [[package]]
-category = "main"
-description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
+version = "8.4.0"
+description = "More routines for operating on iterables, beyond itertools"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "8.4.0"
 
 [[package]]
-category = "main"
-description = "MessagePack (de)serializer."
 name = "msgpack"
+version = "1.0.0"
+description = "MessagePack (de)serializer."
+category = "main"
 optional = true
 python-versions = "*"
-version = "1.0.0"
 
 [[package]]
-category = "main"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "20.4"
+description = "Core utilities for Python packages"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.4"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 six = "*"
 
 [[package]]
-category = "main"
-description = "Utility library for gitignore style pattern matching of file paths."
 name = "pathspec"
+version = "0.8.0"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.8.0"
 
 [[package]]
-category = "main"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "0.13.1"
+description = "plugin and hook calling mechanisms for python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.13.1"
 
 [package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
 dev = ["pre-commit", "tox"]
 
 [[package]]
-category = "main"
-description = "Cross-platform lib for process and system monitoring in Python."
 name = "psutil"
+version = "5.7.0"
+description = "Cross-platform lib for process and system monitoring in Python."
+category = "main"
 optional = true
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "5.7.0"
 
 [package.extras]
 enum = ["enum34"]
 
 [[package]]
-category = "main"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
 name = "py"
+version = "1.8.2"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.8.2"
 
 [[package]]
-category = "main"
-description = "C parser in Python"
-marker = "platform_python_implementation == \"CPython\" and sys_platform == \"win32\""
 name = "pycparser"
+version = "2.20"
+description = "C parser in Python"
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.20"
 
 [[package]]
-category = "main"
-description = "Data validation and settings management using python 3.6 type hinting"
 name = "pydantic"
+version = "1.5.1"
+description = "Data validation and settings management using python 3.6 type hinting"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "1.5.1"
 
 [package.dependencies]
-[package.dependencies.dataclasses]
-python = "<3.7"
-version = ">=0.6"
+dataclasses = {version = ">=0.6", markers = "python_version < \"3.7\""}
 
 [package.extras]
 dotenv = ["python-dotenv (>=0.10.4)"]
@@ -502,93 +489,90 @@ email = ["email-validator (>=1.0.3)"]
 typing_extensions = ["typing-extensions (>=3.7.2)"]
 
 [[package]]
-category = "main"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.7"
+description = "Python parsing module"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.7"
 
 [[package]]
-category = "main"
-description = "pytest: simple powerful testing with Python"
 name = "pytest"
+version = "5.4.3"
+description = "pytest: simple powerful testing with Python"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.3"
 
 [package.dependencies]
-atomicwrites = ">=1.0"
+atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=17.4.0"
-colorama = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 more-itertools = ">=4.0.0"
 packaging = "*"
 pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
-checkqa-mypy = ["mypy (v0.761)"]
+checkqa-mypy = ["mypy (==v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
-category = "main"
-description = "pytest plugin for generating HTML reports"
 name = "pytest-html"
+version = "2.1.1"
+description = "pytest plugin for generating HTML reports"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "2.1.1"
 
 [package.dependencies]
 pytest = ">=5.0"
 pytest-metadata = "*"
 
 [[package]]
-category = "main"
-description = "pytest plugin for test session metadata"
 name = "pytest-metadata"
+version = "1.9.0"
+description = "pytest plugin for test session metadata"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
-version = "1.9.0"
 
 [package.dependencies]
 pytest = ">=2.9.0"
 
 [[package]]
-category = "main"
-description = "YAML parser and emitter for Python"
 name = "pyyaml"
+version = "5.3.1"
+description = "YAML parser and emitter for Python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "5.3.1"
 
 [[package]]
-category = "main"
-description = "Python bindings for 0MQ"
 name = "pyzmq"
+version = "19.0.1"
+description = "Python bindings for 0MQ"
+category = "main"
 optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*"
-version = "19.0.1"
 
 [[package]]
-category = "main"
-description = "Alternative regular expression module, to replace re."
 name = "regex"
+version = "2020.6.8"
+description = "Alternative regular expression module, to replace re."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2020.6.8"
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.24.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.24.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
@@ -598,26 +582,26 @@ urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
 
 [package.extras]
 security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 
 [[package]]
-category = "main"
-description = "A utility belt for advanced users of python-requests"
 name = "requests-toolbelt"
+version = "0.9.1"
+description = "A utility belt for advanced users of python-requests"
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.9.1"
 
 [package.dependencies]
 requests = ">=2.0.1,<3.0.0"
 
 [[package]]
-category = "main"
-description = "Python client for Sentry (https://getsentry.com)"
 name = "sentry-sdk"
+version = "0.14.4"
+description = "Python client for Sentry (https://getsentry.com)"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.14.4"
 
 [package.dependencies]
 certifi = "*"
@@ -638,158 +622,149 @@ sqlalchemy = ["sqlalchemy (>=1.2)"]
 tornado = ["tornado (>=5)"]
 
 [[package]]
-category = "main"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.15.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.15.0"
 
 [[package]]
-category = "dev"
-description = "The little ASGI library that shines."
 name = "starlette"
+version = "0.12.9"
+description = "The little ASGI library that shines."
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "0.12.9"
 
 [package.extras]
 full = ["aiofiles", "graphene", "itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests", "ujson"]
 
 [[package]]
-category = "main"
-description = "Python Library for Tom's Obvious, Minimal Language"
 name = "toml"
-optional = false
-python-versions = "*"
 version = "0.10.1"
-
-[[package]]
+description = "Python Library for Tom's Obvious, Minimal Language"
 category = "main"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
-name = "typed-ast"
 optional = false
 python-versions = "*"
-version = "1.4.1"
 
 [[package]]
+name = "typed-ast"
+version = "1.4.1"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
 category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
+optional = false
+python-versions = "*"
+
+[[package]]
 name = "urllib3"
+version = "1.25.9"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.25.9"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
 secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
-category = "dev"
-description = "The lightning-fast ASGI server."
 name = "uvicorn"
+version = "0.11.5"
+description = "The lightning-fast ASGI server."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.11.5"
 
 [package.dependencies]
 click = ">=7.0.0,<8.0.0"
 h11 = ">=0.8,<0.10"
-httptools = ">=0.1.0,<0.2.0"
-uvloop = ">=0.14.0"
+httptools = {version = ">=0.1.0,<0.2.0", markers = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"PyPy\""}
+uvloop = {version = ">=0.14.0", markers = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"PyPy\""}
 websockets = ">=8.0.0,<9.0.0"
 
 [package.extras]
 watchgodreload = ["watchgod (>=0.6,<0.7)"]
 
 [[package]]
-category = "dev"
-description = "Fast implementation of asyncio event loop on top of libuv"
-marker = "sys_platform != \"win32\" and sys_platform != \"cygwin\" and platform_python_implementation != \"PyPy\""
 name = "uvloop"
-optional = false
-python-versions = "*"
 version = "0.14.0"
-
-[[package]]
-category = "main"
-description = "Measures the displayed width of unicode strings in a terminal"
-name = "wcwidth"
+description = "Fast implementation of asyncio event loop on top of libuv"
+category = "dev"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "wcwidth"
+version = "0.2.4"
+description = "Measures the displayed width of unicode strings in a terminal"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.2.4"
 
 [[package]]
-category = "dev"
-description = "An implementation of the WebSocket Protocol (RFC 6455 & 7692)"
 name = "websockets"
+version = "8.0.2"
+description = "An implementation of the WebSocket Protocol (RFC 6455 & 7692)"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "8.0.2"
 
 [[package]]
-category = "main"
-description = "The comprehensive WSGI web application library."
 name = "werkzeug"
+version = "1.0.1"
+description = "The comprehensive WSGI web application library."
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.0.1"
 
 [package.extras]
 dev = ["pytest", "pytest-timeout", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
 watchdog = ["watchdog"]
 
 [[package]]
-category = "main"
-description = "A small Python utility to set file creation time on Windows"
-marker = "sys_platform == \"win32\""
 name = "win32-setctime"
+version = "1.0.1"
+description = "A small Python utility to set file creation time on Windows"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.1"
 
 [package.extras]
 dev = ["pytest (>=4.6.2)", "black (>=19.3b0)"]
 
 [[package]]
-category = "main"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-marker = "python_version < \"3.8\""
 name = "zipp"
+version = "3.1.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "3.1.0"
 
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [[package]]
-category = "main"
-description = "Very basic event publishing system"
 name = "zope.event"
+version = "4.4"
+description = "Very basic event publishing system"
+category = "main"
 optional = true
 python-versions = "*"
-version = "4.4"
-
-[package.dependencies]
-setuptools = "*"
 
 [package.extras]
 docs = ["sphinx"]
 test = ["zope.testrunner"]
 
 [[package]]
-category = "main"
-description = "Interfaces for Python"
 name = "zope.interface"
+version = "5.1.0"
+description = "Interfaces for Python"
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "5.1.0"
-
-[package.dependencies]
-setuptools = "*"
 
 [package.extras]
 docs = ["sphinx", "repoze.sphinx.autointerface"]
@@ -802,8 +777,9 @@ locust = ["locust"]
 upload = ["requests-toolbelt", "filetype"]
 
 [metadata]
-content-hash = "e47b74393605334573a83551e91effda69586b32c65e1acb468901bf5596374d"
+lock-version = "1.1"
 python-versions = "^3.6"
+content-hash = "d6fa05d492e1c17d10a7e0bd999d007879ef8352be78d8dc273603bffb1f5745"
 
 [metadata.files]
 aiocontextvars = [
@@ -834,6 +810,40 @@ black = [
     {file = "black-19.10b0-py36-none-any.whl", hash = "sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b"},
     {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
 ]
+brotli = [
+    {file = "Brotli-1.0.9-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:268fe94547ba25b58ebc724680609c8ee3e5a843202e9a381f6f9c5e8bdb5c70"},
+    {file = "Brotli-1.0.9-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:c2415d9d082152460f2bd4e382a1e85aed233abc92db5a3880da2257dc7daf7b"},
+    {file = "Brotli-1.0.9-cp27-cp27m-manylinux1_x86_64.whl", hash = "sha256:5913a1177fc36e30fcf6dc868ce23b0453952c78c04c266d3149b3d39e1410d6"},
+    {file = "Brotli-1.0.9-cp27-cp27m-win32.whl", hash = "sha256:afde17ae04d90fbe53afb628f7f2d4ca022797aa093e809de5c3cf276f61bbfa"},
+    {file = "Brotli-1.0.9-cp27-cp27mu-manylinux1_i686.whl", hash = "sha256:7cb81373984cc0e4682f31bc3d6be9026006d96eecd07ea49aafb06897746452"},
+    {file = "Brotli-1.0.9-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:db844eb158a87ccab83e868a762ea8024ae27337fc7ddcbfcddd157f841fdfe7"},
+    {file = "Brotli-1.0.9-cp35-cp35m-macosx_10_6_intel.whl", hash = "sha256:c83aa123d56f2e060644427a882a36b3c12db93727ad7a7b9efd7d7f3e9cc2c4"},
+    {file = "Brotli-1.0.9-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:6b2ae9f5f67f89aade1fab0f7fd8f2832501311c363a21579d02defa844d9296"},
+    {file = "Brotli-1.0.9-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:68715970f16b6e92c574c30747c95cf8cf62804569647386ff032195dc89a430"},
+    {file = "Brotli-1.0.9-cp35-cp35m-win32.whl", hash = "sha256:defed7ea5f218a9f2336301e6fd379f55c655bea65ba2476346340a0ce6f74a1"},
+    {file = "Brotli-1.0.9-cp35-cp35m-win_amd64.whl", hash = "sha256:88c63a1b55f352b02c6ffd24b15ead9fc0e8bf781dbe070213039324922a2eea"},
+    {file = "Brotli-1.0.9-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:503fa6af7da9f4b5780bb7e4cbe0c639b010f12be85d02c99452825dd0feef3f"},
+    {file = "Brotli-1.0.9-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:40d15c79f42e0a2c72892bf407979febd9cf91f36f495ffb333d1d04cebb34e4"},
+    {file = "Brotli-1.0.9-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:93130612b837103e15ac3f9cbacb4613f9e348b58b3aad53721d92e57f96d46a"},
+    {file = "Brotli-1.0.9-cp36-cp36m-win32.whl", hash = "sha256:61a7ee1f13ab913897dac7da44a73c6d44d48a4adff42a5701e3239791c96e14"},
+    {file = "Brotli-1.0.9-cp36-cp36m-win_amd64.whl", hash = "sha256:1c48472a6ba3b113452355b9af0a60da5c2ae60477f8feda8346f8fd48e3e87c"},
+    {file = "Brotli-1.0.9-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:3b78a24b5fd13c03ee2b7b86290ed20efdc95da75a3557cc06811764d5ad1126"},
+    {file = "Brotli-1.0.9-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:9d12cf2851759b8de8ca5fde36a59c08210a97ffca0eb94c532ce7b17c6a3d1d"},
+    {file = "Brotli-1.0.9-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:6c772d6c0a79ac0f414a9f8947cc407e119b8598de7621f39cacadae3cf57d12"},
+    {file = "Brotli-1.0.9-cp37-cp37m-win32.whl", hash = "sha256:f909bbbc433048b499cb9db9e713b5d8d949e8c109a2a548502fb9aa8630f0b1"},
+    {file = "Brotli-1.0.9-cp37-cp37m-win_amd64.whl", hash = "sha256:97f715cf371b16ac88b8c19da00029804e20e25f30d80203417255d239f228b5"},
+    {file = "Brotli-1.0.9-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:160c78292e98d21e73a4cc7f76a234390e516afcd982fa17e1422f7c6a9ce9c8"},
+    {file = "Brotli-1.0.9-cp38-cp38-manylinux1_i686.whl", hash = "sha256:b663f1e02de5d0573610756398e44c130add0eb9a3fc912a09665332942a2efb"},
+    {file = "Brotli-1.0.9-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:5b6ef7d9f9c38292df3690fe3e302b5b530999fa90014853dcd0d6902fb59f26"},
+    {file = "Brotli-1.0.9-cp38-cp38-win32.whl", hash = "sha256:35a3edbe18e876e596553c4007a087f8bcfd538f19bc116917b3c7522fca0429"},
+    {file = "Brotli-1.0.9-cp38-cp38-win_amd64.whl", hash = "sha256:269a5743a393c65db46a7bb982644c67ecba4b8d91b392403ad8a861ba6f495f"},
+    {file = "Brotli-1.0.9-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:5cb1e18167792d7d21e21365d7650b72d5081ed476123ff7b8cac7f45189c0c7"},
+    {file = "Brotli-1.0.9-cp39-cp39-manylinux1_i686.whl", hash = "sha256:16d528a45c2e1909c2798f27f7bf0a3feec1dc9e50948e738b961618e38b6a7b"},
+    {file = "Brotli-1.0.9-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:56d027eace784738457437df7331965473f2c0da2c70e1a1f6fdbae5402e0389"},
+    {file = "Brotli-1.0.9-cp39-cp39-win32.whl", hash = "sha256:cfc391f4429ee0a9370aa93d812a52e1fee0f37a81861f4fdd1f4fb28e8547c3"},
+    {file = "Brotli-1.0.9-cp39-cp39-win_amd64.whl", hash = "sha256:854c33dad5ba0fbd6ab69185fec8dab89e13cda6b7d191ba111987df74f38761"},
+    {file = "Brotli-1.0.9.zip", hash = "sha256:4d1b810aa0ed773f81dceda2cc7b403d01057458730e309856356d4ef4188438"},
+]
 certifi = [
     {file = "certifi-2020.4.5.2-py2.py3-none-any.whl", hash = "sha256:9cd41137dc19af6a5e03b630eefe7d1f458d964d406342dd3edf625839b944cc"},
     {file = "certifi-2020.4.5.2.tar.gz", hash = "sha256:5ad7e9a056d25ffa5082862e36f119f7f7cec6457fa07ee2f8c339814b80c9b1"},
diff --git a/pyproject.toml b/pyproject.toml
index bdf28770..4009a727 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "httprunner"
-version = "3.1.4"
+version = "3.1.5"
 description = "One-stop solution for HTTP(S) testing."
 license = "Apache-2.0"
 readme = "README.md"
@@ -43,6 +43,7 @@ allure-pytest = {version = "^2.8.16", optional = true}
 requests-toolbelt = {version = "^0.9.1", optional = true}
 filetype = {version = "^1.0.7", optional = true}
 locust = {version = "^1.0.3", optional = true}
+Brotli = "^1.0.9"
 
 [tool.poetry.extras]
 allure = ["allure-pytest"]                  # pip install "httprunner[allure]", poetry install -E allure