diff --git a/requirements.txt b/requirements.txt
index 346fc52..4f45136 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,4 +29,4 @@ pytest==3.6.3
 requests==2.19.1
 six==1.11.0
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3