diff --git a/README.md b/README.md
index c8bb5126..63c9f223 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,10 @@
 $ pip install -r requirements.txt
 ```
 
+## Supported Python Versions
+
+Python 2.7, 3.3, 3.4, 3.5, and 3.6.
+
 ## 阅读更多
 
 - [《背景介绍》](docs/background.md)
diff --git a/ate/utils.py b/ate/utils.py
index f9519fc3..8698f4b3 100644
--- a/ate/utils.py
+++ b/ate/utils.py
@@ -24,7 +24,7 @@ def load_testcases(testcase_file_path):
 def parse_response_object(resp_obj):
     try:
         resp_content = resp_obj.json()
-    except json.decoder.JSONDecodeError:
+    except ValueError:
         resp_content = resp_obj.text
 
     return {