diff --git a/azure-pipelines-ci.yml b/azure-pipelines-ci.yml
--- a/azure-pipelines-ci.yml
+++ b/azure-pipelines-ci.yml
@@ -58,7 +58,7 @@ jobs:
 - job: macos
   displayName: 'MacOS'
   pool:
-    vmImage: 'macOS-10.13'
+    vmImage: 'macOS-10.14'
 
   variables:
     MACOSX_DEPLOYMENT_TARGET: 10.9
diff --git a/azure-pipelines/templates/release.yml b/azure-pipelines/templates/release.yml
--- a/azure-pipelines/templates/release.yml
+++ b/azure-pipelines/templates/release.yml
@@ -141,7 +141,7 @@ jobs:
 - job: macos
   displayName: 'MacOS'
   pool:
-    vmImage: 'macOS-10.13'
+    vmImage: 'macOS-10.14'
   dependsOn: source
 
   variables: