diff --git a/requirements.txt b/requirements.txt
index 3609528..abf1975 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ py==1.10.0
 pytest==3.0.6
 requests==2.17.3
 urllib3==1.24.2
-Werkzeug==0.11.15
+Werkzeug==0.15.3