diff --git a/requirements.txt b/requirements.txt
index 2a6df78..d3e19d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,5 +37,5 @@ six==1.10.0
 swampy==2.1.7
 uritemplate==3.0.0
 urllib3==1.22
-Werkzeug==0.11.15
+Werkzeug==0.15.3
 WTForms==2.1