diff --git a/requirements/requirements-optionals.txt b/requirements/requirements-optionals.txt
index c800a5891..bc20c739a 100644
--- a/requirements/requirements-optionals.txt
+++ b/requirements/requirements-optionals.txt
@@ -1,8 +1,8 @@
 # Optional packages which may be used with REST framework.
-psycopg2-binary==2.7.5
+psycopg2-binary>=2.8.2, <2.9
 markdown==2.6.11
 django-guardian==1.5.0
-django-filter==1.1.0
+django-filter>=2.1.0, <2.2
 coreapi==2.3.1
 coreschema==0.0.4
 pyyaml