diff --git a/.github/workflows/agentics-maintenance.yml b/.github/workflows/agentics-maintenance.yml
index c15759a..712ccd2 100644
--- a/.github/workflows/agentics-maintenance.yml
+++ b/.github/workflows/agentics-maintenance.yml
@@ -100,7 +100,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7 # v6.0.2
+        uses: actions/checkout@v7.0.0 # v6.0.2
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/bandit.yml b/.github/workflows/bandit.yml
index 6e7aa42..1f97d0e 100644
--- a/.github/workflows/bandit.yml
+++ b/.github/workflows/bandit.yml
@@ -27,7 +27,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
 
       # PERFORMANCE: Cache pip dependencies so that any packages installed by the
       # bandit scan action (or future pip-install steps) are served from cache.
diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index cb09c0d..508bcaf 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
 
       - name: Setup Python Environment
         uses: actions/setup-python@v6
diff --git a/.github/workflows/jules-daily-qa.yml b/.github/workflows/jules-daily-qa.yml
index 9b5df9e..bd3e643 100644
--- a/.github/workflows/jules-daily-qa.yml
+++ b/.github/workflows/jules-daily-qa.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
 
       - name: Trigger Jules QA
         env:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 5ff082d..c2138d8 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
   ruff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 50fcac9..c4b4b05 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index 98f3072..ce2365e 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -18,7 +18,7 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
diff --git a/.github/workflows/pr-visual-recap.yml b/.github/workflows/pr-visual-recap.yml
index 7f2e0a0..794eea1 100644
--- a/.github/workflows/pr-visual-recap.yml
+++ b/.github/workflows/pr-visual-recap.yml
@@ -218,7 +218,7 @@ jobs:
       VISUAL_RECAP_SKILL_SOURCE: ${{ vars.VISUAL_RECAP_SKILL_SOURCE || 'auto' }}
       VISUAL_RECAP_SECRET_SCAN: ${{ vars.VISUAL_RECAP_SECRET_SCAN || 'high-confidence' }}
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           # This job runs an agent over untrusted PR diff; don't leave the token
@@ -240,7 +240,7 @@ jobs:
             echo "local=false" >> "$GITHUB_OUTPUT"
           fi
 
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         if: steps.cli.outputs.local == 'true'
         with:
           ref: ${{ github.event.pull_request.base.sha }}
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index 4663f60..397a6d9 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
       - uses: release-drafter/release-drafter@ed4bc48ec97379be2258e7b7ac2624a3e26ab809 # v7.4.0
diff --git a/.github/workflows/repository-automation-daily.yml b/.github/workflows/repository-automation-daily.yml
index 8caf3c2..36fd4a2 100644
--- a/.github/workflows/repository-automation-daily.yml
+++ b/.github/workflows/repository-automation-daily.yml
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
@@ -84,7 +84,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
@@ -120,7 +120,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
@@ -156,7 +156,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
@@ -196,7 +196,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
diff --git a/.github/workflows/repository-automation-weekly.yml b/.github/workflows/repository-automation-weekly.yml
index 299cbb8..6caa05a 100644
--- a/.github/workflows/repository-automation-weekly.yml
+++ b/.github/workflows/repository-automation-weekly.yml
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
         with:
           token: ${{ secrets.GH_TOKEN }}
           fetch-depth: 0
diff --git a/.github/workflows/summary.yml b/.github/workflows/summary.yml
index 258c931..53b31b8 100644
--- a/.github/workflows/summary.yml
+++ b/.github/workflows/summary.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
 
       - name: Run AI inference
         id: inference
diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index 5b9dbe5..20a1d21 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v7
+        uses: actions/checkout@v7.0.0
 
       - name: Set up uv
         uses: astral-sh/setup-uv@v7
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d90064d..3661fd5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
index d1b23d8..b33b91a 100644
--- a/.github/workflows/typecheck.yml
+++ b/.github/workflows/typecheck.yml
@@ -12,7 +12,7 @@ jobs:
   mypy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7.0.0
       - uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true