Tests(tox): Require tox <= 2.9.1

[ppu.git] / .travis.yml

diff --git a/.travis.yml b/.travis.yml
index 0d24657961a8f685148303a58d76616100d92823..75d4038c477451bdf43953f7f527377dad642a6e 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -34,7 +34,7 @@ matrix:
     env: TOXENV=py34-flake8
 
 install:
-  - travis_retry pip install --upgrade pip setuptools tox
+  - travis_retry pip install --upgrade pip setuptools "tox <= 2.9.1"
 
 script:
   - tox