diff --git a/DTI-CDF_requirements.txt b/DTI-CDF_requirements.txt
index 1f01fd2..42e26a9 100644
--- a/DTI-CDF_requirements.txt
+++ b/DTI-CDF_requirements.txt
@@ -83,5 +83,5 @@ tornado==5.1.1
 traitlets==4.3.2
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 xgboost==0.81