diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index ef341b1..9ac113e 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -38,7 +38,7 @@ jobs:
         working-directory: site
     steps:
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Configure Pages
         # Pin the Pages source to GitHub Actions (build_type=workflow); enables
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d2c126a..f25e371 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name == 'push'
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           fetch-depth: 0
 
@@ -96,7 +96,7 @@ jobs:
           - target: aarch64-apple-darwin
             runner: macos-14
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
         with:
@@ -171,7 +171,7 @@ jobs:
             runner: macos-14
             manylinux: auto
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
         with:
@@ -230,7 +230,7 @@ jobs:
             runner: macos-14
             manylinux: auto
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
         with:
@@ -273,7 +273,7 @@ jobs:
     name: Build Python plugin sdist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
         with:
@@ -458,7 +458,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
         with:
@@ -530,7 +530,7 @@ jobs:
       contents: write
       id-token: write
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index c2d107f..4d471e8 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -26,7 +26,7 @@ jobs:
     name: Rust
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           # Full history so the ADR-024 migration-retirement guard can resolve
           # the published_build.txt ref via `git show <ref>:0001` (the marker
@@ -142,7 +142,7 @@ jobs:
           - target: aarch64-apple-darwin
             runner: macos-14
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
         with:
@@ -163,7 +163,7 @@ jobs:
     name: Python plugin
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
         with:
@@ -216,7 +216,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [rust, python-plugin]
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
         with: