diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index 6374b301d8..1d10c1275e 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -5,6 +5,7 @@ on:
 
 jobs:
   dispatch:
+    runs-on: "ubuntu-latest"
     strategy:
       matrix:
         repo: