diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
old mode 100755
new mode 100644
index 6ccd475..23fc1cb
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -14,7 +14,7 @@ django-appconf==1.0.2
 django-compressor==2.2
 django-filter==1.1
 django-rest-framework-mongoengine==3.3.1
-djangorestframework==3.7.7
+djangorestframework==3.11.2
 drf-nested-routers==0.90.0
 drf-yasg==1.1.3
 enum34==1.1.6