diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 32482a3..c1b4e8c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,6 +60,7 @@ jobs:
             bbx-${{ matrix.os }}-${{ matrix.arch }}
 
   build-image:
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v2