diff --git a/requirements.txt b/requirements.txt
index 1a387f1..812240a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,4 +25,4 @@ requests-mock==1.5.2
 s3transfer==0.2.0
 six==1.12.0
 urllib3==1.24.1
-Werkzeug==0.15.1
+Werkzeug==0.15.3