Update appveyor.yml

den-run-ai · filmor · commit 2362a1d405db · 2018-05-28T11:49:24.000+02:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -41,6 +41,7 @@ init:
   - set PATH=%PYTHON%;%PYTHON%\Scripts;%PATH%
 
 install:
+  - python -m pip install -U pip
   - pip install --upgrade -r requirements.txt --quiet
 
   # Install OpenCover. Can't put on `packages.config`, not Mono compatible
