diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8fe84a189..cbf9aa4dc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,7 +78,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
+        os: [macos-13, ubuntu-latest, windows-latest]
 
     steps:
       - name: Check out Git repository
@@ -145,7 +145,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
+        os: [macos-13, ubuntu-latest, windows-latest]
 
     steps:
       - name: Check out Git repository