diff --git a/.github/workflows/autobuild.yaml b/.github/workflows/autobuild.yaml
index 78bed8d..e175c1e 100644
--- a/.github/workflows/autobuild.yaml
+++ b/.github/workflows/autobuild.yaml
@@ -223,7 +223,7 @@ jobs:
             "-DgRPC_CARES_PROVIDER=package"
         - name: linux-arm64
           runner: ubuntu-24.04-arm
-          container: ubuntu:20.04
+          container: ubuntu:24.04
           preinstall: >-
             apt-get update &&
             apt-get install -y ninja-build libz-dev libc-ares-dev wget clang-10