diff --git a/.github/workflows/ubuntu.yaml b/.github/workflows/ubuntu.yaml
index feb801a4e..55e46cea8 100644
--- a/.github/workflows/ubuntu.yaml
+++ b/.github/workflows/ubuntu.yaml
@@ -42,7 +42,7 @@ jobs:
   #      run: build/bin/test_singa
 
   build-cpptest-on-cpu:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
       - uses: actions/checkout@v1