diff --git a/azure-pipelines-PR.yml b/azure-pipelines-PR.yml
index be8dc94eca5..9723c7356df 100644
--- a/azure-pipelines-PR.yml
+++ b/azure-pipelines-PR.yml
@@ -507,7 +507,7 @@ stages:
         # MacOS
         - job: MacOS
           pool:
-            vmImage: macos-11
+            vmImage: macos-12
           variables:
           - name: _SignType
             value: Test
@@ -642,7 +642,7 @@ stages:
         # Plain FCS build Mac
         - job: Plain_Build_MacOS
           pool:
-            vmImage: macos-11
+            vmImage: macos-12
           variables:
           - name: _BuildConfig
             value: Debug
@@ -722,4 +722,4 @@ stages:
               targetPath: './artifacts/log/Release/AheadOfTime/Trimming/'
               artifactName: 'Trim Test Logs Attempt $(System.JobAttempt) Logs $(_kind)'
             continueOnError: true
-            condition: always()
\ No newline at end of file
+            condition: always()