AV: upgrade virtualenv

pytest-dev · Aug 4, 2019 · 5876b1a · 5876b1a
1 parent 01ad31e
commit 5876b1a
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/appveyor.yml b/appveyor.yml
@@ -23,6 +23,7 @@ install:
 
   # Upgrade pip for features used by dependencies, but pin it to avoid surprises.
   - C:\Python35\python -m pip install pip==19.2.1
+  - C:\Python35\python -m pip install -U virtualenv
   - C:\Python35\python -m pip install tox
 
 test_script: