diff --git a/requirements.txt b/requirements.txt
index ab7fb4c..a382132 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,6 @@ mccabe==0.6.1
 six==1.12.0
 typed-ast==1.4.0
 webassets==0.12.1
-Werkzeug==0.15.4
+Werkzeug==0.15.5
 wrapt==1.11.2
 WTForms==2.2.1