diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e85bcb1..6116691 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -17,12 +17,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: ['macos-latest', 'ubuntu-20.04']
+        os: ['macos-latest', 'ubuntu-22.04']
 
     steps:
       # https://github.com/actions/checkout
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive