Don't run on Windows
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9497220..280af43 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@
     strategy:
       matrix:
         python-version: [2.7, 3.7, 3.8, 3.9]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/yapftests/yapf_test.py b/yapftests/yapf_test.py
index 446b256..4e062cf 100644
--- a/yapftests/yapf_test.py
+++ b/yapftests/yapf_test.py
@@ -1528,7 +1528,7 @@
     self.assertYapfReformats(
         unformatted_code,
         expected_formatted_code,
-        env={'PYTHONIOENCODING': 'cp936', 'PYTHONHASHSEED': 0})
+        env={'PYTHONIOENCODING': 'cp936'})
 
   def testDisableWithLineRanges(self):
     unformatted_code = """\