diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 790716d8..4a909720 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,19 +4,19 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
         ruby: [ '2.7', '3.0.1' ]
     name: Ruby ${{ matrix.ruby }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
       - name: install bundler
-        run: gem install bundler:1.17.3
+        run: gem install bundler:2.2.23
       - name: bundle install
         run: bundle install --jobs 4 --retry 3
       - name: build site