diff --git a/httprunner/utils.py b/httprunner/utils.py
index 2a82279b..22849024 100644
--- a/httprunner/utils.py
+++ b/httprunner/utils.py
@@ -10,7 +10,6 @@ import string
 import types
 from collections import OrderedDict
 
-import yaml
 from httprunner import exception
 from requests.structures import CaseInsensitiveDict