diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 226d3f6..f1eab77 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           persist-credentials: false
 
@@ -37,7 +37,7 @@ jobs:
       matrix:
         rust: ["1.85", stable, beta]
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Install Rust toolchain
         run: |
@@ -77,7 +77,7 @@ jobs:
           --health-timeout 3s
           --health-retries 5
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           # This job never pushes; don't leave the token in the git config
           # (zizmor: artipacked).
@@ -127,7 +127,7 @@ jobs:
           --health-timeout 3s
           --health-retries 5
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           # This job never pushes; don't leave the token in the git config
           # (zizmor: artipacked).
@@ -168,7 +168,7 @@ jobs:
       # Public release-tarball checksum, not a credential.
       WASM_BINDGEN_SHA256: "3039f38f65fe237b640cf06a140c919ca8d717ec5012146d145d3f27bb4d6b28" # pragma: allowlist secret
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Install Rust toolchain
         run: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d49aace..2d37a23 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -84,7 +84,7 @@ jobs:
       # holds CARGO_REGISTRY_TOKEN and only runs on a release (a handful of
       # times a year), so a third-party action buys negligible build-time
       # savings against a real increase in that secret's trust surface.
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           # On dispatch, build and publish the tag's content — never main HEAD.
           # inputs.tag is empty on push events, so github.sha keeps the default
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 1a72c41..378b274 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -79,7 +79,7 @@ jobs:
           [ -x "$TOOL_ROOT/bin/cargo-audit" ] || cargo install cargo-audit --locked --version "$CARGO_AUDIT_VERSION" --root "$TOOL_ROOT"
           echo "$TOOL_ROOT/bin" >> "$GITHUB_PATH"
 
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           # This job never pushes; don't leave the token in the git config
           # (zizmor: artipacked).