diff --git a/.azure/ci-macos-job.yml b/.azure/ci-macos-job.yml
index b73fb757..66dd4fd4 100644
--- a/.azure/ci-macos-job.yml
+++ b/.azure/ci-macos-job.yml
@@ -2,7 +2,7 @@ jobs:
 - job: MacOS_CI
   displayName: 'MacOS CI'
   pool:
-    vmImage: 'macOS-10.13'
+    vmImage: 'macOS-10.14'
   strategy:
     matrix: 
       Py27: