diff --git a/requirements.txt b/requirements.txt
index 871481f..8fd579b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,4 @@ pluggy==0.8.1
 py==1.7.0
 pytest==4.2.0
 six==1.12.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3