diff --git a/requirements.txt b/requirements.txt
index 326cbc3..1588199 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,4 +22,4 @@ Rx==1.6.1
 six==1.11.0
 urllib3==1.24.1
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3