diff --git a/requirements/requirements-optionals.txt b/requirements/requirements-optionals.txt
index 0ba514c13..241e1951d 100644
--- a/requirements/requirements-optionals.txt
+++ b/requirements/requirements-optionals.txt
@@ -1,4 +1,4 @@
 # Optional packages which may be used with REST framework.
-markdown==2.6.6
-django-guardian==1.4.4
-django-filter==0.10.0
+markdown==2.6.4
+django-guardian==1.4.3
+django-filter==0.13.0