Use patched version of django-file-form with file-type validation

requirements.txt

@@ -13,7 +13,8 @@ django-basic-auth-ip-whitelist==0.3.4
 django-bleach==3.0.0
 django-countries==7.2.1
 django-extensions==3.1.5
-django-file-form==3.3.0
+# django-file-form==3.3.0
+git+https://github.com/theskumar/django-file-form.git@patched-3.4.x
 django-filter==2.4.0
 django-fsm==2.8.0
 django-heroku==0.3.1