diff --git a/.github/workflows/canon-guardrail.yml b/.github/workflows/canon-guardrail.yml
index b069295..be5aa7d 100644
--- a/.github/workflows/canon-guardrail.yml
+++ b/.github/workflows/canon-guardrail.yml
@@ -16,6 +16,6 @@ jobs:
   guardrail:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Enforce retired-claim canon (CC-1)
         run: bash scripts/canon-guardrail.sh .
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 931d578..63c4256 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Run workflow-guardrails
         run: bash scripts/ci/workflow-guardrails.sh .
       - name: Canon-guardrail regression suite
diff --git a/.github/workflows/merge-gate.yml b/.github/workflows/merge-gate.yml
index ca40c97..8313049 100644
--- a/.github/workflows/merge-gate.yml
+++ b/.github/workflows/merge-gate.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/reusable-canon-guardrail.yml b/.github/workflows/reusable-canon-guardrail.yml
index c4f2ccd..b3799b1 100644
--- a/.github/workflows/reusable-canon-guardrail.yml
+++ b/.github/workflows/reusable-canon-guardrail.yml
@@ -23,13 +23,13 @@ jobs:
       contents: read
     steps:
       - name: Check out the calling repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           # GH-B-003: the fetched foreign script runs against this checkout; do
           # not leave the caller's token in .git/config for it to reach.
           persist-credentials: false
       - name: Fetch the shared guardrail script
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: CitrateNetwork/.github
           # GH-B-003: was `ref: main` — a mutable branch, so any push to this
diff --git a/.github/workflows/reusable-js-ci.yml b/.github/workflows/reusable-js-ci.yml
index 0540fc1..ff523be 100644
--- a/.github/workflows/reusable-js-ci.yml
+++ b/.github/workflows/reusable-js-ci.yml
@@ -44,10 +44,10 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Setup Node.js (no cache)
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: ${{ inputs.node-version }}
 
diff --git a/.github/workflows/reusable-python-ci.yml b/.github/workflows/reusable-python-ci.yml
index 2e78e9f..9c0a6e9 100644
--- a/.github/workflows/reusable-python-ci.yml
+++ b/.github/workflows/reusable-python-ci.yml
@@ -40,10 +40,10 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: ${{ inputs.python-version }}
           cache: 'pip'
diff --git a/.github/workflows/reusable-rust-ci.yml b/.github/workflows/reusable-rust-ci.yml
index 41957d5..a09bc98 100644
--- a/.github/workflows/reusable-rust-ci.yml
+++ b/.github/workflows/reusable-rust-ci.yml
@@ -44,7 +44,7 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install Rust toolchain
         # GH-B-004 / DGH-002: was `@master` (a dev branch — silently movable, and
@@ -72,7 +72,7 @@ jobs:
         run: rustc -Vv && cargo -V
 
       - name: Cache cargo registry + git
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/reusable-secret-scan.yml b/.github/workflows/reusable-secret-scan.yml
index b5b81af..978a20d 100644
--- a/.github/workflows/reusable-secret-scan.yml
+++ b/.github/workflows/reusable-secret-scan.yml
@@ -36,7 +36,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0   # full history so a re-introduced secret is caught
 
diff --git a/.github/workflows/reusable-solidity-ci.yml b/.github/workflows/reusable-solidity-ci.yml
index a36092c..a6952cd 100644
--- a/.github/workflows/reusable-solidity-ci.yml
+++ b/.github/workflows/reusable-solidity-ci.yml
@@ -37,7 +37,7 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: recursive
 
@@ -67,7 +67,7 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: recursive