diff --git a/requirements.txt b/requirements.txt
index 8eadee5..c36fb97 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ pylint==2.1.1
 six==1.11.0
 snowballstemmer==1.2.1
 typed-ast==1.1.0
-Werkzeug==0.14.1
+Werkzeug==0.15.5
 wrapt==1.10.11
 xlrd==1.1.0
 XlsxWriter==1.1.0