diff --git a/.travis.yml b/.travis.yml
index 9434ea0..397d106 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,51 +7,56 @@ python:
   - "3.4"
   - "3.5"
 env:
-  - DJANGO=">=1.4,<1.5"
-  - DJANGO=">=1.5,<1.6"
-  - DJANGO=">=1.6,<1.7"
-  - DJANGO=">=1.7,<1.8"
-  - DJANGO=">=1.8,<1.9"
-  - DJANGO=">=1.9,<1.10"
+  - DJANGO="Django>=1.4,<1.5"
+  - DJANGO="Django>=1.5,<1.6"
+  - DJANGO="Django>=1.6,<1.7"
+  - DJANGO="Django>=1.7,<1.8"
+  - DJANGO="Django>=1.8,<1.9"
+  - DJANGO="Django>=1.9,<1.10"
+  - DJANGO="https://github.com/django/django/tarball/master"
 
 matrix:
   exclude:
   - python: "3.5"
-    env: DJANGO=">=1.4,<1.5"
+    env: DJANGO="Django>=1.4,<1.5"
   - python: "3.5"
-    env: DJANGO=">=1.5,<1.6"
+    env: DJANGO="Django>=1.5,<1.6"
   - python: "3.5"
-    env: DJANGO=">=1.6,<1.7"
+    env: DJANGO="Django>=1.6,<1.7"
   - python: "3.5"
-    env: DJANGO=">=1.7,<1.8"
+    env: DJANGO="Django>=1.7,<1.8"
 
   - python: "3.4"
-    env: DJANGO=">=1.4,<1.5"
+    env: DJANGO="Django>=1.4,<1.5"
   - python: "3.4"
-    env: DJANGO=">=1.9,<1.10"
+    env: DJANGO="Django>=1.9,<1.10"
 
   - python: "3.3"
-    env: DJANGO=">=1.4,<1.5"
+    env: DJANGO="Django>=1.4,<1.5"
   - python: "3.3"
-    env: DJANGO=">=1.9,<1.10"
+    env: DJANGO="Django>=1.9,<1.10"
 
   - python: "3.2"
-    env: DJANGO=">=1.4,<1.5"
+    env: DJANGO="Django>=1.4,<1.5"
   - python: "3.2"
-    env: DJANGO=">=1.9,<1.10"
+    env: DJANGO="Django>=1.9,<1.10"
 
   - python: "2.6"
-    env: DJANGO=">=1.7,<1.8"
+    env: DJANGO="Django>=1.7,<1.8"
   - python: "2.6"
-    env: DJANGO=">=1.8,<1.9"
+    env: DJANGO="Django>=1.8,<1.9"
   - python: "2.6"
-    env: DJANGO=">=1.9,<1.10"
+    env: DJANGO="Django>=1.9,<1.10"
+  - python: "2.6"
+    env: DJANGO="https://github.com/django/django/tarball/master"
+  allow_failures:
+    - env: DJANGO="https://github.com/django/django/tarball/master"
 
 before_install:
 - pip install codecov
 
 install:
-  - pip install django$DJANGO coverage==3.6
+  - pip install -q $DJANGO coverage==3.6
 
 script:
   - coverage run --source=polymorphic runtests.py