diff --git a/.github/workflows/ci-mmdevice-mmcore.yml b/.github/workflows/ci-mmdevice-mmcore.yml
index bcc16bb02..807f54d53 100644
--- a/.github/workflows/ci-mmdevice-mmcore.yml
+++ b/.github/workflows/ci-mmdevice-mmcore.yml
@@ -30,7 +30,7 @@ jobs:
             runner: windows-2019
             cxx: cl
           - os: macos
-            runner: macos-11
+            runner: macos-12
             cxx: clang++
           - os: ubuntu
             runner: ubuntu-22.04