diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 81ffa35..a735d09 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: Lint agent frontmatter + scope-guard
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: JSON validity + version sync
@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: Syntax + piped curl|bash must not crash
@@ -94,7 +94,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: Run shellcheck