diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 4f31d824..7f7bc68d 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -39,7 +39,7 @@ jobs:
           - {os: macos-latest, ruby: jruby }
           - {os: macos-latest, ruby: jruby-head }
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}