diff --git a/flask_api/requirements.txt b/flask_api/requirements.txt
old mode 100755
new mode 100644
index 091e8f5..0636e44
--- a/flask_api/requirements.txt
+++ b/flask_api/requirements.txt
@@ -13,4 +13,4 @@ requests==2.20.1
 setproctitle==1.1.9
 six==1.9.0
 SQLAlchemy==1.1.3
-Werkzeug==0.14.1
+Werkzeug==0.15.5