diff --git a/.github/workflows/build-coop.yaml b/.github/workflows/build-coop.yaml
index 4ac7730c7..93152e0a4 100644
--- a/.github/workflows/build-coop.yaml
+++ b/.github/workflows/build-coop.yaml
@@ -172,7 +172,7 @@ jobs:
 
     build-macos-arm:
         if: ${{ github.event_name == 'workflow_dispatch' || contains(github.event.head_commit.message, '[build]') }}
-        runs-on: macos-latest
+        runs-on: macos-26
         steps:
             - name: Checkout repository
               uses: actions/checkout@v4
@@ -208,7 +208,7 @@ jobs:
 
     build-macos-intel:
         if: ${{ github.event_name == 'workflow_dispatch' || contains(github.event.head_commit.message, '[build]') }}
-        runs-on: macos-13
+        runs-on: macos-15
         steps:
             - name: Checkout repository
               uses: actions/checkout@v4