diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 5a46e75..d8a0a5b 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@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 79fe056..5c9eb90 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@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/deploy-to-hf.yml b/.github/workflows/deploy-to-hf.yml
index 6300051..d9c5d3f 100644
--- a/.github/workflows/deploy-to-hf.yml
+++ b/.github/workflows/deploy-to-hf.yml
@@ -20,7 +20,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0  # Fetch full history for proper git push
           lfs: true
diff --git a/.github/workflows/update-conferences.yml b/.github/workflows/update-conferences.yml
index afcfa43..0e95058 100644
--- a/.github/workflows/update-conferences.yml
+++ b/.github/workflows/update-conferences.yml
@@ -17,10 +17,10 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
     
     - name: Set up Python
-      uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c  # v4
+      uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
       with:
         python-version: '3.x'
     
@@ -39,7 +39,7 @@ jobs:
     
     - name: Create Pull Request
       if: steps.git-check.outputs.changes == 'true'
-      uses: peter-evans/create-pull-request@4e1beaa7521e8b457b572c090b25bd3db56bf1c5  # v5
+      uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1  # v8.1.1
       with:
         commit-message: 'chore: update conference data from ccfddl'
         title: 'Update conference data from ccfddl'
diff --git a/.github/workflows/validate-conferences.yml b/.github/workflows/validate-conferences.yml
index e732b03..303f266 100644
--- a/.github/workflows/validate-conferences.yml
+++ b/.github/workflows/validate-conferences.yml
@@ -19,8 +19,8 @@ jobs:
       contents: read
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v7
+      - uses: actions/setup-node@v7
         with:
           node-version: 20
           cache: npm