diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f7196ab..7ea4ecf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -20,7 +20,7 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -34,7 +34,7 @@ jobs:
       matrix:
         python-version: ["3.10", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -42,12 +42,12 @@ jobs:
       - run: uv sync --group dev
       - run: uv run pytest -v --cov=agentproof --cov-branch --cov-report=xml
       - if: matrix.python-version == '3.13'
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v6
 
   docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -57,7 +57,7 @@ jobs:
   security:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -67,7 +67,7 @@ jobs:
   version-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 48462bb..454b68e 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -12,7 +12,7 @@ jobs:
   ci-gate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
@@ -45,13 +45,13 @@ jobs:
     needs: ci-gate
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.x"
       - run: python -m pip install build
       - run: python -m build
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v7
         with:
           name: dist
           path: dist/
@@ -65,7 +65,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v8
         with:
           name: dist
           path: dist/
@@ -77,7 +77,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v8
         with:
           name: dist
           path: dist/
@@ -98,15 +98,15 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
       - run: uv sync --group dev
       - run: uv run mkdocs build --strict
-      - uses: actions/configure-pages@v5
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/configure-pages@v6
+      - uses: actions/upload-pages-artifact@v4
         with:
           path: site/
       - id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5