diff --git a/.travis.yml b/.travis.yml
index 3795cf9..1487000 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,9 +7,12 @@ python:
   - 3.6
   - 3.7
   - 3.8.2
+  - nightly
   - pypy2.7-6.0
   - pypy3.5-6.0
 matrix:
+  allow_failures:
+    - python: nightly
   include:
     - python: 3.5
       env: TOXENV=py35-coverage