diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cbd6381e1..0f9ebbeba 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -5,8 +5,9 @@ jobs:
     runs-on: ${{ matrix.platform }}
     strategy:
       matrix:
-        platform: [ ubuntu-latest ]
+        platform: [ windows-latest, ubuntu-latest ]
     env:
+      PY_COLOR: 1
       NOSE_SHOW_SKIPPED: 1
     steps:
       - uses: actions/checkout@v2
@@ -15,26 +16,33 @@ jobs:
         with:
           python-version: 2.7
       - uses: actions/cache@v1
+        if: startsWith(runner.os, 'Linux')
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
           restore-keys: |
             ${{ runner.os }}-pip-
+      - uses: actions/cache@v1
+        if: startsWith(runner.os, 'Windows')
+        with:
+          path: ~\AppData\Local\pip\Cache
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
       - name: Install base dependencies
         run: |
           python -m pip install --upgrade pip
           pip install tox sphinx
       - name: Test with tox
-        run: |
-          tox -e py27-test
-          tox -e docs
+        run: tox -e py27-test
   test-3x:
     runs-on: ${{ matrix.platform }}
     strategy:
       matrix:
-        platform: [ ubuntu-latest ]
+        platform: [ windows-latest, ubuntu-latest ]
         python-version: [ 5, 6, 7, 8 ]
     env:
+      PY_COLOR: 1
       NOSE_SHOW_SKIPPED: 1
     steps:
       - uses: actions/checkout@v2
@@ -43,24 +51,32 @@ jobs:
         with:
           python-version: 3.${{ matrix.python-version }}
       - uses: actions/cache@v1
+        if: startsWith(runner.os, 'Linux')
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
           restore-keys: |
             ${{ runner.os }}-pip-
+      - uses: actions/cache@v1
+        if: startsWith(runner.os, 'Windows')
+        with:
+          path: ~\AppData\Local\pip\Cache
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
       - name: Install base dependencies
         run: |
           python -m pip install --upgrade pip
           pip install tox sphinx
-      - name: Test with tox
+      - name: Test, coverage, and flake8 with tox
+        if: matrix.python-version == '8'
         run: |
-          if [[ ${{ matrix.python-version }} == '8' ]]; then
-              tox -e py3${{ matrix.python-version }}-test
-              tox -e py3${{ matrix.python-version }}-cov
-              tox -e py3${{ matrix.python-version }}-flake8
-          else
-              tox -e py3${{ matrix.python-version }}-test
-          fi
+          tox -e py3${{ matrix.python-version }}-test
+          tox -e py3${{ matrix.python-version }}-cov
+          tox -e py3${{ matrix.python-version }}-flake8
+      - name: Test with tox
+        if: matrix.python-version != '8'
+        run: tox -e py3${{ matrix.python-version }}-test
   docs:
     runs-on: ubuntu-latest
     steps:
diff --git a/tox.ini b/tox.ini
index 92086b820..b02e491fb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,7 @@ PLATFORM =
 
 [testenv]
 passenv =
+    LANG # avoids output errors
     NOSE_SHOW_SKIPPED # Undocumented feature of nose-show-skipped.
 deps =
     {test,cov}: {[_test]deps}