diff --git a/ci/azure.yml b/ci/azure.yml
index 5672e3d6046e07fe449f35dcc5f2acd391cf6d6b..f219e8872d86aac5621da71d4987af2dbac6cf39 100644
--- a/ci/azure.yml
+++ b/ci/azure.yml
@@ -189,7 +189,7 @@ jobs:
   - job: BuildChannelsOSX
     dependsOn: StyleAndDocs
     pool:
-      vmImage: macos-10.13
+      vmImage: macos-10.14
     steps:
       - template: azure-install-rust.yml
       - script: LIBC_CI=1 sh ./ci/build.sh