diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index acc8217..9a8d442 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -23,7 +23,7 @@ jobs:
         - jruby-9.4
       fail-fast: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: "${{ matrix.ruby }}"
@@ -41,6 +41,6 @@ jobs:
         - ruby:2.2
       fail-fast: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: bundle install
     - run: bundle exec rspec --format documentation
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index ed09da4..f47c865 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -8,7 +8,7 @@ jobs:
   rubocop:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: '3'