diff --git a/.github/workflows/spm.yml b/.github/workflows/spm.yml
index 5f3f807e..23b518ba 100644
--- a/.github/workflows/spm.yml
+++ b/.github/workflows/spm.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   run:
-    runs-on: macos-15
+    runs-on: macos-26
     steps:
       - uses: actions/checkout@v6
       - name: Update Package.resolved