diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8b5545646..0a7e6c66e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,6 +3,7 @@ mock>=1.0.0
 python-dateutil>=2.2
 pytz>=2014.7
 Pillow>=2.7.0
+django-sendfile==0.3.6
 
 # For coverage and PEP8 linting
 coverage>=3.7.0