diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index c9ea5bd5..63556990 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -14,7 +14,7 @@ jobs:
       linux:
         imageName: 'ubuntu-16.04'
       mac:
-        imageName: 'macos-10.13'
+        imageName: 'macos-10.14'
       windows:
         imageName: 'vs2017-win2016'
   pool: