diff --git a/ci/generator-generic-ossf-slsa3-publish.yml b/ci/generator-generic-ossf-slsa3-publish.yml
index e37a3f3..eae7431 100644
--- a/ci/generator-generic-ossf-slsa3-publish.yml
+++ b/ci/generator-generic-ossf-slsa3-publish.yml
@@ -21,6 +21,7 @@ permissions: read-all
 
 jobs:
   build:
+    runs-on: ubuntu-latest
     outputs:
       digests: ${{ steps.hash.outputs.digests }}