diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 24d468c166..4c5a9fb4b3 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -36,8 +36,6 @@ jobs:
           - test_task: test-bundler-parallel
             timeout: 50
           - test_task: test-bundled-gems
-          - test_task: check
-            os: ubuntu-20.04
           - test_task: check
             os: ubuntu-24.04
           - test_task: check