Try without upgrade.

zopefoundation · Feb 11, 2020 · e9d8f2c · e9d8f2c
1 parent 9262387
commit e9d8f2c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -15,7 +15,7 @@ matrix:
         - python: "3.9-dev"
           env: TOXENV=py39
           before_install:
-            - python -m ensurepip --upgrade
+            - python -m ensurepip
 
 install:
     - travis_retry pip install -U pip setuptools