diff --git a/requirements.txt b/requirements.txt
index 1b13404..c4922b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ traitlets==4.2.1
 typing==3.6.1
 update
 virtualenv==15.1.0
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 wrapt==1.10.10
 wxPython==4.0.0
 pynsist
\ No newline at end of file