diff --git a/requirements.txt b/requirements.txt
index c9a2d78..f211829 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,6 +38,6 @@ toml==0.10.0
 typed-ast==1.4.0
 wcwidth==0.1.7
 webargs==5.3.1
-Werkzeug==0.15.4
+Werkzeug==0.15.5
 wrapt==1.11.1
 zipp==0.5.1