diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 2a9bdc7..84ccd31 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -20,6 +20,7 @@ jobs:
 
   build_and_test:
     name: build and test
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
       - name: check