diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5b26f87..1e8f787 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -93,8 +93,8 @@ jobs:
         run: cd build && make
       - name: tests
         run: cd build && ctest --output-on-failure
-  macos-12-build:
-    runs-on: macOS-12
+  macos-13-build:
+    runs-on: macOS-13
     steps:
       - name: Checkout repository code
         uses: actions/checkout@v2