diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 53dddcc2..3d355c8c 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       max-parallel: 4
       matrix: