diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1ec0c3ae93..458ea0e07c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
     steps:
       - name: Check out
         # 全部pullしないとコミット履歴画像をビルドできない
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
           submodules: recursive
@@ -40,7 +40,7 @@ jobs:
           password: ${{ secrets.token }}
 
       - name: Cache Docker layers
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: /tmp/.buildx-cache
           key: ${{ inputs.target }}-${{ runner.os }}-buildx-${{ github.sha }}
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 3be0a6afe8..e210c2efde 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
 
     - name: linting org files
       run: make textlint
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
 
     - name: check kdoc duplicates
       run: ./scripts/check_kdoc_duplicates.sh
diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 1151e673ee..f5a9a5b1b5 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -27,7 +27,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 44d70d932d..72815099cd 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -26,7 +26,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/pdf.yml b/.github/workflows/pdf.yml
index 730c7c78c0..aedbb46989 100644
--- a/.github/workflows/pdf.yml
+++ b/.github/workflows/pdf.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Build
         run: |
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 59811f8133..fbfe62357f 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -42,7 +42,7 @@ jobs:
       git-tag: ${{ steps.git-tag.outputs.git-tag }}
     steps:
       - name: Check out
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ inputs.ref || github.ref }}
 
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out
-        uses: actions/checkout@v6 # publish actions require git
+        uses: actions/checkout@v7 # publish actions require git
         with:
           ref: ${{ inputs.ref || github.ref }}
 
@@ -103,7 +103,7 @@ jobs:
           ls -al ./public/pdfs
 
       - name: Publish generated content to GitHub Pages
-        uses: JamesIves/github-pages-deploy-action@v4.8.0
+        uses: JamesIves/github-pages-deploy-action@v4.9.0
         with:
           branch: gh-pages
           folder: public
diff --git a/.github/workflows/semantic_release.yml b/.github/workflows/semantic_release.yml
index 53b7a56143..30aeb239a9 100644
--- a/.github/workflows/semantic_release.yml
+++ b/.github/workflows/semantic_release.yml
@@ -10,9 +10,9 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout this repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Setup node
-        uses: actions/setup-node@v6.4.0
+        uses: actions/setup-node@v7.0.0
         with:
           node-version: 22
       - name: Install dependencies