diff --git a/.azure-pipelines/client.yml b/.azure-pipelines/client.yml
index 76fe8b0af..f2305f47e 100644
--- a/.azure-pipelines/client.yml
+++ b/.azure-pipelines/client.yml
@@ -108,19 +108,19 @@ jobs:
           NodeVersion: '11.x'
         macOS_Node6:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.14'
+          OSVmImage: 'macOS-10.15'
           NodeVersion: '6.x'
         macOS_Node8:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.14'
+          OSVmImage: 'macOS-10.15'
           NodeVersion: '8.x'
         macOS_Node10:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.14'
+          OSVmImage: 'macOS-10.15'
           NodeVersion: '10.x'
         macOS_Node11:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.14'
+          OSVmImage: 'macOS-10.15'
           NodeVersion: '11.x'
         Windows_Node6:
           OSName: 'Windows'