Travis: update py.test

diff --git a/.travis.yml b/.travis.yml
index 9bf6350c75611e4eea10655413b66542d42052e3..47c8848aaf5f751e38050b33b73a83d6e0f708d2 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,6 @@ install:
 
 # command to run tests
 before_script:
-- pip install pytest-cov pytest-django
+- pip install -U pytest-cov pytest-django
 script:
  - py.test -v --cov telemeta