diff --git a/.semaphore/semaphore.yml b/.semaphore/semaphore.yml
index 72f115c..c79e12f 100644
--- a/.semaphore/semaphore.yml
+++ b/.semaphore/semaphore.yml
@@ -3,7 +3,7 @@ name: First pipeline example
 agent:
   machine:
     type: a1-standard-4
-    os_image: macos-mojave-xcode11
+    os_image: macos-xcode11
 blocks:
   - name: Cache deps
     task: