diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6bddb90..f9e4f3a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,7 +60,7 @@ jobs:
           # egress-policy: block -- enabled 2026-05-23 (compliance audit). If a CI run fails on a network call, switch this single occurrence back to audit and capture the missing endpoint in the issue tracker.
           egress-policy: audit  # TODO: switch to block after 2026-06-30 (compliance audit deferral)
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Setup Node
         uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 8ad5ce4..d7eae00 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -39,7 +39,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index a3a5377..240b81e 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -33,7 +33,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Dependency Review
         uses: actions/dependency-review-action@a1d282b36b6f3519aa1f3fc636f609c47dddb294 # v5.0.0
diff --git a/.github/workflows/fips-compatibility.yml b/.github/workflows/fips-compatibility.yml
index 523fb7c..d7e1c42 100644
--- a/.github/workflows/fips-compatibility.yml
+++ b/.github/workflows/fips-compatibility.yml
@@ -61,7 +61,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Install uv
         uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
@@ -198,7 +198,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Install uv
         uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
diff --git a/.github/workflows/performance-regression.yml b/.github/workflows/performance-regression.yml
index 7a8e2ea..bfa0287 100644
--- a/.github/workflows/performance-regression.yml
+++ b/.github/workflows/performance-regression.yml
@@ -59,7 +59,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check for benchmark script
         id: check
diff --git a/.github/workflows/postman-api-tests.yml b/.github/workflows/postman-api-tests.yml
index 52d1115..fbd4091 100644
--- a/.github/workflows/postman-api-tests.yml
+++ b/.github/workflows/postman-api-tests.yml
@@ -63,7 +63,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Set up Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index 67ab033..7720683 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -56,7 +56,7 @@ jobs:
           egress-policy: audit  # TODO: switch to block after 2026-06-30 (compliance audit deferral)
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Set up Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
@@ -99,7 +99,7 @@ jobs:
           egress-policy: audit  # TODO: switch to block after 2026-06-30 (compliance audit deferral)
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check documentation links
         uses: lycheeverse/lychee-action@8646ba30535128ac92d33dfc9133794bfdd9b411 # v2.8.0
@@ -133,7 +133,7 @@ jobs:
           egress-policy: audit  # TODO: switch to block after 2026-06-30 (compliance audit deferral)
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Set up Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
diff --git a/.github/workflows/release-sign.yml b/.github/workflows/release-sign.yml
index 1963c2f..0807a1d 100644
--- a/.github/workflows/release-sign.yml
+++ b/.github/workflows/release-sign.yml
@@ -23,7 +23,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
 
       - name: Install cosign
         uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6  # v4.1.2
diff --git a/.github/workflows/reuse.yml b/.github/workflows/reuse.yml
index 7e6036c..c31db43 100644
--- a/.github/workflows/reuse.yml
+++ b/.github/workflows/reuse.yml
@@ -28,7 +28,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: REUSE Compliance Check
         uses: fsfe/reuse-action@676e2d560c9a403aa252096d99fcab3e1132b0f5 # v6.0.0
@@ -59,7 +59,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Check primary license exists
         run: |