diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb17dcd..4dab1b9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         python: ["3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install uv
         uses: astral-sh/setup-uv@caf0cab7a618c569241d31dcd442f54681755d39 # v3
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install uv
         uses: astral-sh/setup-uv@caf0cab7a618c569241d31dcd442f54681755d39 # v3
@@ -93,7 +93,7 @@ jobs:
       # fetch-depth: 0 so gitleaks scans every commit on the branch, not just
       # the tip — secrets that were briefly committed and then removed still
       # live in history and remain harvestable.
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ed8633d..e7fafd3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install uv
         uses: astral-sh/setup-uv@caf0cab7a618c569241d31dcd442f54681755d39 # v3
diff --git a/.github/workflows/sync-upstream.yml b/.github/workflows/sync-upstream.yml
index a87b0e7..30ecd52 100644
--- a/.github/workflows/sync-upstream.yml
+++ b/.github/workflows/sync-upstream.yml
@@ -49,7 +49,7 @@ jobs:
 
       # Checked out WITH the App token so the later `git push` is authenticated as the App
       # (not the default GITHUB_TOKEN), which is also what lets CI run on the resulting PR.
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           token: ${{ steps.app-token.outputs.token }}