diff --git a/.github/workflows/custom.yml b/.github/workflows/custom.yml
index afd78c44a9..2a53ff73ee 100644
--- a/.github/workflows/custom.yml
+++ b/.github/workflows/custom.yml
@@ -76,7 +76,7 @@ on:
 jobs:
   build:
     name: Build MT7621 u-boot
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
        fail-fast: False