diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index bb094ce..5c1796e 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -49,7 +49,7 @@ jobs:
 
   fmt:
     name: rust fmt
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v1