diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e6b7af..ba2c465 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - name: Checkout
         uses: actions/checkout@v4.2.2
diff --git a/.github/workflows/gated-checkin.yml b/.github/workflows/gated-checkin.yml
index ae55466..ca417e4 100644
--- a/.github/workflows/gated-checkin.yml
+++ b/.github/workflows/gated-checkin.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - name: Checkout
         uses: actions/checkout@v4.2.2