diff --git a/.github/workflows/build-gems.yml b/.github/workflows/build-gems.yml
index e743e2c7a..c33feb48c 100644
--- a/.github/workflows/build-gems.yml
+++ b/.github/workflows/build-gems.yml
@@ -31,7 +31,7 @@ jobs:
       matrix:
         ruby-platform: ${{ fromJSON(needs.ci-data.outputs.result).supported-ruby-platforms }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: ruby/setup-ruby@v1
         with:
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6a798927d..404a41c8d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-24.04
     if: ${{ github.event_name == 'pull_request' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: ruby/setup-ruby@v1
@@ -49,7 +49,7 @@ jobs:
           - { target: wasm32-unknown-emscripten }
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: docker/setup-buildx-action@v3
       - uses: docker/login-action@v3
         with:
@@ -74,7 +74,7 @@ jobs:
     outputs:
       entries: ${{ steps.set-matrix.outputs.entries }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.4.1"
@@ -101,13 +101,13 @@ jobs:
     needs: [build-rake-task-matrix]
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: true
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           name: build-manifest
-      - uses: actions/cache@v4.2.3
+      - uses: actions/cache@v4.2.4
         if: ${{ matrix.entry.rubies_cache_key != null }}
         with:
           path: ./rubies
@@ -167,11 +167,11 @@ jobs:
     runs-on: ubuntu-24.04
     if: ${{ startsWith(github.ref, 'refs/tags/') || inputs.publish }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@v5
+      - uses: actions/download-artifact@v5
         with:
           name: build-manifest
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           path: release
       - uses: actions/setup-node@v4
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 42ff502e4..889265a26 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -21,7 +21,7 @@ jobs:
     env:
       HUGO_VERSION: 0.102.3
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: '3.1'
@@ -32,7 +32,7 @@ jobs:
       - name: Build HTML
         run: rake doc
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: ./html
 
diff --git a/.github/workflows/nightly-release.yml b/.github/workflows/nightly-release.yml
index ce9123f36..cb771c7f4 100644
--- a/.github/workflows/nightly-release.yml
+++ b/.github/workflows/nightly-release.yml
@@ -15,7 +15,7 @@ jobs:
     outputs:
       tag-name: ${{ steps.generate-tag.outputs.TAG_NAME }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: git config
         run: |
           git config --local user.email "action@github.com"