diff --git a/backend/requirements.txt b/backend/requirements.txt
index d422567..de21915 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -11,4 +11,4 @@ PyGreSQL==5.0.3
 requests==2.20.0
 six==1.10.0
 websocket-client==0.40.0
-Werkzeug==0.16.0
+Werkzeug==0.15.5
diff --git a/requirements.txt b/requirements.txt
index e172681..491c681 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ PyGreSQL==5.0.3
 requests==2.20.0
 six==1.10.0
 websocket-client==0.40.0
-Werkzeug==0.15.3
+Werkzeug==0.15.5