diff --git a/requirements.txt b/requirements.txt
index 7000626..516f0d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,5 +21,5 @@ six==1.12.0
 SQLAlchemy==1.3.3
 visitor==0.1.3
 webencodings==0.5.1
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 WTForms==2.2.1