diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f1b9b23d..175fb811 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -386,7 +386,7 @@ jobs:
   # neither runs, so this job runs the sandbox tests and the real scans on an
   # ARM64 kernel.
   arm64-sandbox:
-    runs-on: ubuntu-24.04-arm
+    runs-on: ubuntu-26.04-arm
     timeout-minutes: 30
     steps:
       - name: Check out source