diff --git a/requirements.txt b/requirements.txt
index 1e06a87..58d3bd8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ pytz==2018.5
 requests==2.19.1
 six==1.11.0
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.5