diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 6a6295a8..770efe40 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -9,7 +9,7 @@ jobs:
       # Don't cancel the macOS build if the Linux build fails, etc.
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-10.15]
+        os: [ubuntu-20.04, macos-11]
         use-asan: [YES, NO]
     env:
         # Expose to the build-*.sh in an environment variable