diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 639025d95ed52ab18eae8a84c61b2024d64088d8..a42903d0b9c9d4e69083b20d8c10e3a60aaaa60a 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -16,7 +16,7 @@ env:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v3