diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index 92fa7da..76a636b 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macOS-11]
+        os: [ubuntu-latest, macOS]
     steps:
       - uses: actions/checkout@v2
         with: