diff --git a/requirements.txt b/requirements.txt
index 71ee320..78f52df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
-Django==1.11.7
-djangorestframework==3.7.1
+Django>=1.11,<1.11.999
+djangorestframework>=3.7,<3.7.999
 drf-nested-routers==0.90.0
-pytz==2017.3
+pytz
 git+git://github.com/etesync/journal-manager@v0.4.1