diff --git a/requirements.txt b/requirements.txt
index 7992e86..2441eaa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,6 +39,6 @@ six==1.12.0
 textfsm==1.1.0
 urllib3==1.22
 visitor==0.1.3
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1
 yml==0.0.1