diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c82bf2a0..2760c913 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-10.15]
+        os: [ubuntu-latest, macos-latest]
         ruby: [2.6, 2.7, '3.0', 3.1, 3.2, jruby-head]
     runs-on: ${{ matrix.os }}
     steps: