diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ffb494..e280c68 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        os: [ ubuntu-latest ]
         node-version: [ 6.x, 8.x, 10.x, 12.x, 14.x, 16.x ]
 
     steps: