diff --git a/appveyor.yml b/appveyor.yml
index 3220eef3..a0b44062 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,28 +1,27 @@
-version: "{build}"
 environment:
   matrix:
-  - PYTHON: "C:\\Python27"
-  - PYTHON: "C:\\Python27-x64"
-  - PYTHON: "C:\\Python34"
-  - PYTHON: "C:\\Python34-x64"
-  - PYTHON: "C:\\Python35"
-  - PYTHON: "C:\\Python35-x64"
+  - PYTHON: 'C:\Python27'
+  - PYTHON: 'C:\Python27-x64'
+  - PYTHON: 'C:\Python34'
+  - PYTHON: 'C:\Python34-x64'
+  - PYTHON: 'C:\Python35'
+  - PYTHON: 'C:\Python35-x64'
 matrix:
   fast_finish: true
 init:
-- "ECHO %PATH%"
-- "ECHO %PYTHON%"
-- ps: "ls C:/Python*"
+- ps: ls C:/Python*
+- 'SET PATH=%PYTHON%;%PYTHON%\Scripts;%PATH%'
+- 'python -c "import os, pprint; pprint.pprint(sorted(os.environ.items()))"'
+# Use python -m pip when upgrading pip to avoid WindowsError: Access is denied
+- python -m pip install pip --upgrade
 install:
-- "git submodule update --init"
-- "%PYTHON%\\Scripts\\pip.exe --version"
-- "%PYTHON%\\Scripts\\pip.exe install -rrequirements-dev.txt wheel"
+- git submodule update --init
+- pip install wheel -rrequirements-dev.txt
 build: false
 test_script:
-- '%PYTHON%\\python.exe -c "import os, pprint; pprint.pprint(sorted(os.environ.items()))"'
-- "%PYTHON%\\python.exe -m pytest sasstests.py"
+- python -m pytest sasstests.py
 after_test:
-- "%PYTHON%\\python.exe setup.py bdist_wheel"
+- python setup.py bdist_wheel
 artifacts:
 - path: dist\*
 cache: