diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 6123ca60..cf005b1b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -508,6 +508,8 @@ jobs:
             os_name: "macos"
           - os_version: "14"
             os_name: "macos"
+          - os_version: "15"
+            os_name: "macos"
           - os_version: "latest"
             os_name: "ubuntu"
           - os_version: "latest"  # this job will only configure the formula for release, no validation