diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 11a468d0..82a265d0 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '1.5.13'
+__version__ = '1.5.14'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/__init__.py b/httprunner/__init__.py
index 0e26081e..48724cf5 100644
--- a/httprunner/__init__.py
+++ b/httprunner/__init__.py
@@ -1,3 +1,9 @@
 # encoding: utf-8
 
+try:
+    # monkey patch at beginning to avoid RecursionError when running locust.
+    from gevent import monkey; monkey.patch_all()
+except ImportError:
+    pass
+
 from httprunner.api import HttpRunner, LocustRunner
diff --git a/tests/httpbin/basic.yml b/tests/httpbin/basic.yml
index 2c64f175..f8eacca2 100644
--- a/tests/httpbin/basic.yml
+++ b/tests/httpbin/basic.yml
@@ -1,7 +1,7 @@
 - config:
     name: basic test with httpbin
     request:
-        base_url: http://httpbin.org/
+        base_url: https://httpbin.org/
 
 - test:
     name: index
@@ -98,6 +98,3 @@
         - len_eq: ["content", 9]
         - len_eq: ["json", 9]
         - len_eq: ["text", 9]
-
-
-