diff --git a/requirements/base.txt b/requirements/base.txt
index a5e06485..e5eab68c 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,12 +1,12 @@
-Django>=1.9.2
-django-appconf==1.0.1
-django-model-utils==2.4.0
-django-reversion==1.10.1
-django-sitetree==1.5.1
-django-taggit==0.18.0
-django-timezone-field==1.3
+Django>=1.9.12,<1.10
+django-appconf>=1.0.2,<2.0
+django-model-utils>=2.5.1,<3.0
+django-reversion==1.10.2
+django-sitetree==1.6.0
+django-taggit==0.21.3
+django-timezone-field==2.0
 django-user-accounts==1.3.1
 easy-thumbnails==2.3
 html5lib==0.9999999
-markdown==2.6.5
-pytz==2015.7
+markdown==2.6.7
+pytz==2016.10