diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 680e4b1..c1f4585 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest]
+        os: [macos-latest, windows-2019]
 
     # create steps
     steps:
@@ -43,8 +43,7 @@ jobs:
           sudo apt-get install libxtst-dev libpng++-dev
           sudo apt-get install --no-install-recommends -y icnsutils graphicsmagick xz-utils
       # step3: yarn
-      - name: macos Yarn install
-        if: ${{runner.os == 'macOS'}}
+      - name: Yarn install
         run: |
           yarn
           yarn global add xvfb-maybe