diff --git a/.github/workflows/go118.yml b/.github/workflows/go118.yml
index c491727f..1695b877 100644
--- a/.github/workflows/go118.yml
+++ b/.github/workflows/go118.yml
@@ -10,7 +10,7 @@ jobs:
 
   macos:
     name: Test Go1.18 for macOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
 
     - name: Set up Go 1.18
diff --git a/.github/workflows/go119.yml b/.github/workflows/go119.yml
index d048348d..2b4b217b 100644
--- a/.github/workflows/go119.yml
+++ b/.github/workflows/go119.yml
@@ -10,7 +10,7 @@ jobs:
 
   macos:
     name: Test Go1.19 for macOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
 
     - name: Set up Go 1.19
diff --git a/.github/workflows/go120.yml b/.github/workflows/go120.yml
index d6347952..4965bd0f 100644
--- a/.github/workflows/go120.yml
+++ b/.github/workflows/go120.yml
@@ -10,7 +10,7 @@ jobs:
 
   macos:
     name: Test Go1.20 for macOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
 
     - name: Set up Go 1.20
diff --git a/.github/workflows/go121.yml b/.github/workflows/go121.yml
index ec7fb05e..9250d2ed 100644
--- a/.github/workflows/go121.yml
+++ b/.github/workflows/go121.yml
@@ -10,7 +10,7 @@ jobs:
 
   macos:
     name: Test Go1.21 for macOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
 
     - name: Set up Go 1.21
diff --git a/.github/workflows/go122.yml b/.github/workflows/go122.yml
index 2185f2df..3555ef22 100644
--- a/.github/workflows/go122.yml
+++ b/.github/workflows/go122.yml
@@ -10,7 +10,7 @@ jobs:
 
   macos:
     name: Test Go1.22 for macOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
 
     - name: Set up Go 1.22