diff --git a/httprunner/models.py b/httprunner/models.py
index 8389a886..e1cb7a37 100644
--- a/httprunner/models.py
+++ b/httprunner/models.py
@@ -99,8 +99,8 @@ class TestCaseTime(BaseModel):
 
 
 class TestCaseInOut(BaseModel):
-    vars: VariablesMapping = {}
-    export: Dict = {}
+    config_vars: VariablesMapping = {}
+    export_vars: Dict = {}
 
 
 class RequestStat(BaseModel):
diff --git a/httprunner/runner.py b/httprunner/runner.py
index af280a9c..a80ba335 100644
--- a/httprunner/runner.py
+++ b/httprunner/runner.py
@@ -334,7 +334,7 @@ class HttpRunner(object):
                 duration=self.__duration,
             ),
             in_out=TestCaseInOut(
-                vars=self.__config.variables, export=self.get_export_variables()
+                config_vars=self.__config.variables, export_vars=self.get_export_variables()
             ),
             log=self.__log_path,
             step_datas=self.__step_datas,