diff --git a/.github/workflows/cache-warm.yml b/.github/workflows/cache-warm.yml
index 637154dd..dde0d279 100644
--- a/.github/workflows/cache-warm.yml
+++ b/.github/workflows/cache-warm.yml
@@ -54,7 +54,7 @@ jobs:
           - target: x86_64-pc-windows-msvc
             os: windows-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
 
@@ -131,7 +131,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d4b87db9..d547f609 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,7 +53,7 @@ jobs:
     if: github.event_name != 'schedule'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@e081816240890017053eacbb1bdf337761dc5582 # 1.95.0
         with:
           components: rustfmt
@@ -111,11 +111,11 @@ jobs:
           - feature-flag: "--no-default-features"
             feature-label: "no-embed"
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
 
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
 
@@ -215,11 +215,11 @@ jobs:
     if: github.event_name != 'schedule'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
 
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
 
@@ -281,10 +281,10 @@ jobs:
     if: github.event_name != 'schedule'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
       - name: Syntax check every tracked .js
@@ -402,7 +402,7 @@ jobs:
     timeout-minutes: 20
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@e081816240890017053eacbb1bdf337761dc5582 # 1.95.0
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
diff --git a/.github/workflows/pr-impact-review.yml b/.github/workflows/pr-impact-review.yml
index 4b3155a3..d151b966 100644
--- a/.github/workflows/pr-impact-review.yml
+++ b/.github/workflows/pr-impact-review.yml
@@ -25,13 +25,13 @@ jobs:
     timeout-minutes: 45
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
           # Full history so the PR base SHA is present for the diff.
           fetch-depth: 0
 
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2de52a1f..6a94417c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
           # Same redirect as `build` below: on workflow_dispatch, github.ref is
@@ -321,7 +321,7 @@ jobs:
             npm-pkg: win32-x64
             binary: code-graph-mcp.exe
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
           # Push trigger: github.ref = refs/tags/vX.Y.Z, checkout is a no-op.
@@ -427,11 +427,11 @@ jobs:
       contents: write
       id-token: write
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           ref: ${{ github.event.inputs.tag || github.ref }}
 
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
           registry-url: https://registry.npmjs.org
@@ -606,7 +606,7 @@ jobs:
             > release-assets/claude-plugin.tar.gz.sha256
 
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@b4309332981a82ec1c5618f44dd2e27cc8bfbfda # v3
+        uses: softprops/action-gh-release@efb35369e0ad2afab669f228072c1b0d510eae64 # v3
         with:
           generate_release_notes: true
           files: release-assets/*
@@ -694,7 +694,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 20
 
diff --git a/.github/workflows/routing-bench.yml b/.github/workflows/routing-bench.yml
index cd6dee1d..fc17e37e 100644
--- a/.github/workflows/routing-bench.yml
+++ b/.github/workflows/routing-bench.yml
@@ -47,7 +47,7 @@ jobs:
     # what happened.
     continue-on-error: false
     steps:
-      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true