diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 93044259..3cd92f47 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,7 +24,7 @@ jobs:
           - ruby
     steps:
       - name: "Checkout repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: "Initialize CodeQL"
         uses: github/codeql-action/init@v2
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e6a18e0f..5a463d36 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -10,7 +10,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: '3.0'
diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
index 023d9547..18b1424c 100644
--- a/.github/workflows/spec.yml
+++ b/.github/workflows/spec.yml
@@ -21,7 +21,7 @@ jobs:
         os: [ubuntu-22.04, macos-12]
         ruby: ['3.0', '3.1', '3.2']
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}