diff --git a/.github/workflows/jlpkgbutler-ci-master-workflow.yml b/.github/workflows/jlpkgbutler-ci-master-workflow.yml
index 170485d1..2967a475 100644
--- a/.github/workflows/jlpkgbutler-ci-master-workflow.yml
+++ b/.github/workflows/jlpkgbutler-ci-master-workflow.yml
@@ -14,10 +14,12 @@ jobs:
       matrix:
         julia-version: ['1.6', '1.7', '1.8', '1.9', '1.10', '1.11']
         julia-arch: [x64, x86]
-        os: [ubuntu-latest, windows-latest, macos-12]
+        os: [ubuntu-latest, windows-latest, macos-13]
         exclude:
-          - os: macos-12
+          - os: macos-13
             julia-arch: x86
+          - os: macos-13
+            julia-version: "1.4"
           - os: ubuntu-latest
             julia-arch: x86
 
diff --git a/.github/workflows/jlpkgbutler-ci-pr-workflow.yml b/.github/workflows/jlpkgbutler-ci-pr-workflow.yml
index 4cb8e1cb..506cfad5 100644
--- a/.github/workflows/jlpkgbutler-ci-pr-workflow.yml
+++ b/.github/workflows/jlpkgbutler-ci-pr-workflow.yml
@@ -11,10 +11,12 @@ jobs:
       matrix:
         julia-version: ['1.6', '1.7', '1.8', '1.9', '1.10', '1.11']
         julia-arch: [x64, x86]
-        os: [ubuntu-latest, windows-latest, macos-12]
+        os: [ubuntu-latest, windows-latest, macos-13]
         exclude:
-          - os: macos-12
+          - os: macos-13
             julia-arch: x86
+          - os: macos-13
+            julia-version: "1.4"
           - os: ubuntu-latest
             julia-arch: x86