diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index fa51eea50..fb6329601 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -81,7 +81,7 @@ jobs:
 
 
   mac_os_tests:
-    runs-on: macOS-latest
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
       - name: Configure environment variables