diff --git a/serving/client_requirements.txt b/serving/client_requirements.txt
old mode 100755
new mode 100644
index 608f2d8..149809f
--- a/serving/client_requirements.txt
+++ b/serving/client_requirements.txt
@@ -75,5 +75,5 @@ traitlets==4.3.2
 urllib3==1.22
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.2.1
diff --git a/serving/serving_requirements.txt b/serving/serving_requirements.txt
old mode 100755
new mode 100644
index 5604e95..ae07b9f
--- a/serving/serving_requirements.txt
+++ b/serving/serving_requirements.txt
@@ -11,4 +11,4 @@ six==1.11.0
 tensorboard==1.8.0
 tensorflow==1.8.0
 termcolor==1.1.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3