diff --git a/requirements.txt b/requirements.txt
index 2b1764c..5499570 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,5 +18,5 @@ pyrsistent==0.14.11
 pytz==2018.9
 six==1.12.0
 typed-ast==1.3.1
-Werkzeug==0.15.1
+Werkzeug==0.15.3
 wrapt==1.11.1