diff --git a/requirements.txt b/requirements.txt
index 497de2e..b761ac1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,4 +64,4 @@ touchphat==0.0.1
 twython==3.4.0
 unicornhathd==0.0.4
 urllib3==1.19.1
-Werkzeug==0.11.15
+Werkzeug==0.15.3