diff --git a/httprunner/cli_test.py b/httprunner/cli_test.py
index db7f9651..20a4c8cb 100644
--- a/httprunner/cli_test.py
+++ b/httprunner/cli_test.py
@@ -2,6 +2,8 @@ import io
 import sys
 import unittest
 
+import pytest
+
 from httprunner.cli import main
 
 
@@ -36,3 +38,6 @@ class TestCli(unittest.TestCase):
         from httprunner import __description__
 
         self.assertIn(__description__, self.captured_output.getvalue().strip())
+
+    def test_debug_pytest(self):
+        pytest.main(["-s", "examples/postman_echo/request_methods/request_with_variables_test.py"])
diff --git a/httprunner/schema.py b/httprunner/schema.py
index 86c1a13c..c6c0fe97 100644
--- a/httprunner/schema.py
+++ b/httprunner/schema.py
@@ -115,9 +115,9 @@ class RequestData(BaseModel):
 
 class ResponseData(BaseModel):
     status_code: int
+    headers: Dict
     cookies: Cookies
     encoding: Union[Text, None] = None
-    headers: Dict
     content_type: Text
     body: Union[Text, bytes, Dict]