diff --git a/infra/config/generated/cr-buildbucket.cfg b/infra/config/generated/cr-buildbucket.cfg
index 5862c76..ed3902b 100644
--- a/infra/config/generated/cr-buildbucket.cfg
+++ b/infra/config/generated/cr-buildbucket.cfg
@@ -32,7 +32,7 @@
       name: "mac"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Mac-11"
+      dimensions: "os:Mac-13"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "gn"
@@ -122,7 +122,7 @@
       name: "mac"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Mac-11"
+      dimensions: "os:Mac-13"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "gn"
diff --git a/infra/config/main.star b/infra/config/main.star
index 8b269ef..3cb126e 100755
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -120,7 +120,7 @@
     )
 
 ci_builder("linux", "Ubuntu-22.04")
-ci_builder("mac", "Mac-11", caches = [swarming.cache("macos_sdk")])
+ci_builder("mac", "Mac-13", caches = [swarming.cache("macos_sdk")])
 ci_builder("win", "Windows-10", caches = [swarming.cache("windows_sdk")])
 
 luci.cq(
@@ -197,5 +197,5 @@
     )
 
 try_builder("linux", "Ubuntu-22.04")
-try_builder("mac", "Mac-11", caches = [swarming.cache("macos_sdk")])
+try_builder("mac", "Mac-13", caches = [swarming.cache("macos_sdk")])
 try_builder("win", "Windows-10", caches = [swarming.cache("windows_sdk")])