diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e2795ac2..0a378bbe 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
         ruby: [truffleruby-34.0.1, truffleruby+graalvm-34.0.1]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set platform
       id: platform
       run: |
@@ -130,7 +130,7 @@ jobs:
         jruby-version: [10.1.0.0]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set platform
       id: platform
       run: |
diff --git a/.github/workflows/check-new-releases.yml b/.github/workflows/check-new-releases.yml
index eb528b6d..0411debd 100644
--- a/.github/workflows/check-new-releases.yml
+++ b/.github/workflows/check-new-releases.yml
@@ -8,17 +8,17 @@ jobs:
   check_new_releases:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
         token: ${{ secrets.PUSH_TO_MASTER_TOKEN }}
     - name: Clone setup-ruby
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         repository: ruby/setup-ruby
         path: setup-ruby
     - name: Clone ruby-build
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         repository: rbenv/ruby-build
         path: ruby-build
diff --git a/.github/workflows/copy.yml b/.github/workflows/copy.yml
index fe0cee94..bf4b712c 100644
--- a/.github/workflows/copy.yml
+++ b/.github/workflows/copy.yml
@@ -5,7 +5,7 @@ jobs:
   copy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: '3.4'