diff --git a/business-logic-server/requirements.txt b/business-logic-server/requirements.txt
old mode 100755
new mode 100644
index 4b2c9ef..d570351
--- a/business-logic-server/requirements.txt
+++ b/business-logic-server/requirements.txt
@@ -1,4 +1,4 @@
-Django==2.1.1
+Django==2.1.11
 psycopg2-binary==2.7.5
 django-cors-headers==2.4.0
 configparser==3.5.0