diff --git a/requirements.txt b/requirements.txt
index e031775..1b59738 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ requests>=2.20.0
 Resource==0.2.0
 six==1.9.0
 websocket-client==0.37.0
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 httplib2==0.19.0
 oauth2client==4.0.0
 pyasn1==0.1.9