diff --git a/requirements.txt b/requirements.txt
index 236cb15..2a423a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,4 +26,4 @@ six==1.11.0
 terminalplot==0.2.6
 traitlets==4.3.2
 urllib3==1.22
-Werkzeug==0.14.1
+Werkzeug==0.15.3