diff --git a/tox.ini b/tox.ini
index 16217e9..d5c130c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,48 +14,48 @@ deps =
 [testenv:py26-1.4]
 basepython = python2.6
 deps =
-    Django==1.4.10
+    Django>=1.4,<1.5
     {[testenv]deps}
 
 [testenv:py26-1.5]
 basepython = python2.6
 deps =
-    Django==1.5.5
+    Django>=1.5,<1.6
     {[testenv]deps}
 
 [testenv:py26-1.6]
 basepython = python2.6
 deps =
-    Django==1.6
+    Django>=1.6,<1.7
     {[testenv]deps}
 
 [testenv:py27-1.4]
 basepython = python2.7
 deps =
-    Django==1.4.10
+    Django>=1.4,<1.5
     {[testenv]deps}
 
 
 [testenv:py27-1.5]
 basepython = python2.7
 deps =
-    Django==1.5.5
+    Django>=1.5,<1.6
     {[testenv]deps}
 
 [testenv:py27-1.6]
 basepython = python2.7
 deps =
-    Django==1.6
+    Django>=1.6,<1.7
     {[testenv]deps}
 
 [testenv:py33-1.5]
 basepython = python3.3
 deps =
-    Django==1.5.5
+    Django>=1.5,<1.6
     {[testenv]deps}
 
 [testenv:py33-1.6]
 basepython = python3.3
 deps =
-    Django==1.6
+    Django>=1.6,<1.7
     {[testenv]deps}