diff --git a/stance/more-classifiers/requirements.txt b/stance/more-classifiers/requirements.txt
index d4276e2..ecc2863 100644
--- a/stance/more-classifiers/requirements.txt
+++ b/stance/more-classifiers/requirements.txt
@@ -40,4 +40,4 @@ tensorflow==1.9.0rc1
 termcolor==1.1.0
 urllib3==1.23
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3