diff --git a/.github/workflows/testing_ci.yml b/.github/workflows/testing_ci.yml
index d9380be9..a59122d0 100644
--- a/.github/workflows/testing_ci.yml
+++ b/.github/workflows/testing_ci.yml
@@ -19,7 +19,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                os: [ubuntu-latest, windows-latest, macOS-latest]
+                os: [ubuntu-latest, windows-latest, macOS-13]
                 python-version: ["3.7", "3.11"]
 
         steps:
diff --git a/.github/workflows/testing_daily.yml b/.github/workflows/testing_daily.yml
index 81d686f7..66f61d55 100644
--- a/.github/workflows/testing_daily.yml
+++ b/.github/workflows/testing_daily.yml
@@ -14,7 +14,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                os: [ubuntu-latest, windows-latest, macOS-latest]
+                os: [ubuntu-latest, windows-latest, macOS-13]
                 python-version: ["3.7", "3.11"]
 
         steps: