diff --git a/requirement.txt b/requirement.txt
index 33a3702..d15352a 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -27,4 +27,4 @@ six==1.11.0
 SQLAlchemy==1.2.11
 urllib3==1.23
 webencodings==0.5.1
-Werkzeug==0.8.3
+Werkzeug==0.15.3