diff --git a/requirements.txt b/requirements.txt
index dc4a920..63c9c12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,4 +38,4 @@ six==1.11.0
 uritemplate==3.0.0
 urllib3==1.22
 URLObject==2.4.3
-Werkzeug==0.12.2
+Werkzeug==0.15.3