diff --git a/.github/workflows/executable-workflow.yaml b/.github/workflows/executable-workflow.yaml
index 51d91f147..6c3741b0d 100644
--- a/.github/workflows/executable-workflow.yaml
+++ b/.github/workflows/executable-workflow.yaml
@@ -71,6 +71,7 @@ jobs:
 
   build-simulator:
     name: "Build Simulator"
+    runs-on: "ubuntu-20.04"
     needs: host-build-test
     strategy:
       matrix: