requirements: Add django-filter to dev reqs

Forgot to add this to development requirements.

Signed-off-by: Stephen Finucane <stephen@that.guru>
Fixes: 6f2ddab6 ("Revert 'requirements: Test older versions of DRF'")

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0f8f08bcb728647b90aa16f8793be3961765c851..13906fe1af7b6b4fba9c5c61aff3a6c6b5d61235 100644 (file)
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,4 @@
 Django>=1.8,<1.11
 djangorestframework>=3.5,<3.6
+django-filter>=1.0,<1.1
 -r requirements-test.txt