diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 3f093cd..46249ee 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -47,7 +47,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.9]
-        os: [ubuntu-latest, macos-11, windows-latest]
+        os: [ubuntu-latest, macos-12, windows-latest]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/package.yaml b/.github/workflows/package.yaml
index 8f794e5..61bccd8 100644
--- a/.github/workflows/package.yaml
+++ b/.github/workflows/package.yaml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.9]
-        os: [ubuntu-latest, macos-11, windows-latest]
+        os: [ubuntu-latest, macos-12, windows-latest]
 
     steps:
       - uses: actions/checkout@v4