diff --git a/.github/actions/playwright-install/action.yml b/.github/actions/playwright-install/action.yml
index bf935813aa..09faaf5ef5 100644
--- a/.github/actions/playwright-install/action.yml
+++ b/.github/actions/playwright-install/action.yml
@@ -6,7 +6,7 @@ runs:
   steps:
     - name: Cache Playwright browsers
       id: playwright-cache
-      uses: actions/cache@v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       with:
         path: ~/.cache/ms-playwright
         key: playwright-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
diff --git a/.github/workflows/changelog-check.yml b/.github/workflows/changelog-check.yml
index 9a2727c463..930dd3b607 100644
--- a/.github/workflows/changelog-check.yml
+++ b/.github/workflows/changelog-check.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check changelog
-        uses: MetaMask/github-tools/.github/actions/check-changelog@v1
+        uses: MetaMask/github-tools/.github/actions/check-changelog@d0f155aad5d7b5403d29a094c2f752238bf43237 # v1.18.2
         with:
           base-branch: ${{ github.event.pull_request.base.ref }}
           head-ref: ${{ github.head_ref }}
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index c6220f8d87..a5042e6555 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -26,13 +26,13 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 1
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@c9ec2b02b40ac0444c6716e51d5e19ef2e0b8d00
+        uses: anthropics/claude-code-action@c9ec2b02b40ac0444c6716e51d5e19ef2e0b8d00 # v1.0.28
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
 
diff --git a/.github/workflows/coverage-report.yml b/.github/workflows/coverage-report.yml
index 8df9dce719..1a390e9e87 100644
--- a/.github/workflows/coverage-report.yml
+++ b/.github/workflows/coverage-report.yml
@@ -11,10 +11,10 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Download coverage artifact
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: coverage
           path: coverage/
@@ -36,7 +36,7 @@ jobs:
           fi
 
       - name: Post coverage report
-        uses: davelosert/vitest-coverage-report-action@5b6122e3a819a3be7b27fc961b7faafb3bf00e4d
+        uses: davelosert/vitest-coverage-report-action@5b6122e3a819a3be7b27fc961b7faafb3bf00e4d # v2.9.0
         with:
           json-summary-path: coverage/coverage-summary.json
           json-final-path: coverage/coverage-final.json
diff --git a/.github/workflows/dependabot-dedupe.yml b/.github/workflows/dependabot-dedupe.yml
index 656bc80295..2f98e6f6b9 100644
--- a/.github/workflows/dependabot-dedupe.yml
+++ b/.github/workflows/dependabot-dedupe.yml
@@ -14,7 +14,7 @@ jobs:
     if: ${{ github.actor == 'dependabot[bot]' }}
     steps:
       - name: Check out repo
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 0
@@ -24,13 +24,13 @@ jobs:
           git config user.email "actions@github.com"
 
       - name: Set up Node
-        uses: actions/setup-node@v7
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 24
       - name: Install Yarn
         run: corepack enable
       - name: Restore Yarn cache
-        uses: actions/setup-node@v7
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: 24
           cache: yarn
diff --git a/.github/workflows/lint-build-test.yml b/.github/workflows/lint-build-test.yml
index 37e88a8a41..4d2a83f939 100644
--- a/.github/workflows/lint-build-test.yml
+++ b/.github/workflows/lint-build-test.yml
@@ -12,7 +12,7 @@ jobs:
         node-version: [22.x, 24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           cache-node-modules: true
           is-high-risk-environment: false
@@ -27,7 +27,7 @@ jobs:
         node-version: [24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -49,7 +49,7 @@ jobs:
         node-version: [24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -71,7 +71,7 @@ jobs:
         node-version: [24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -93,7 +93,7 @@ jobs:
         node-version: [22.x, 24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -102,7 +102,7 @@ jobs:
       - run: "yarn test --coverage=${{ matrix.node-version == '24.x' && 'true' || 'false' }}"
       - name: Upload coverage artifact
         if: ${{ matrix.node-version == '24.x' }}
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: coverage
           path: coverage/
@@ -124,7 +124,7 @@ jobs:
         node-version: [22.x, 24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -166,7 +166,7 @@ jobs:
             directory: evm-wallet-experiment
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -177,7 +177,7 @@ jobs:
         run: yarn workspace ${{ matrix.package }} test:e2e:ci
       - name: Upload test artifacts
         if: ${{ failure() && steps.e2e.conclusion == 'failure' }}
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: playwright-traces-${{ matrix.directory }}
           path: packages/${{ matrix.directory }}/test-results
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e66ecd75d2..6d311621f0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,13 +18,13 @@ jobs:
       skip-merge-queue: ${{ steps.check-skip-merge-queue.outputs.up-to-date }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         if: github.event_name == 'merge_group'
 
       - name: Check pull request merge queue status
         id: check-skip-merge-queue
         if: github.event_name == 'merge_group'
-        uses: MetaMask/github-tools/.github/actions/check-skip-merge-queue@v1
+        uses: MetaMask/github-tools/.github/actions/check-skip-merge-queue@d0f155aad5d7b5403d29a094c2f752238bf43237 # v1.18.2
 
   detect-changes:
     name: Detect changes
@@ -34,7 +34,7 @@ jobs:
       has-ci: ${{ steps.changes.outputs.has-ci }}
       has-lint-targets: ${{ steps.changes.outputs.has-lint-targets }}
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
       - name: Detect change categories
@@ -121,7 +121,7 @@ jobs:
       (github.event_name != 'merge_group' || needs.check-skip-merge-queue.outputs.skip-merge-queue != 'true')
       && (needs.detect-changes.outputs.has-ci == 'true' || needs.detect-changes.outputs.has-code == 'true')
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Download actionlint
         id: download-actionlint
         run: bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/7fdc9630cc360ea1a469eed64ac6d78caeda1234/scripts/download-actionlint.bash) 1.6.25
@@ -150,7 +150,7 @@ jobs:
         node-version: [24.x]
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: false
           node-version: ${{ matrix.node-version }}
@@ -194,7 +194,7 @@ jobs:
       IS_RELEASE: ${{ steps.is-release.outputs.IS_RELEASE }}
     steps:
       - id: is-release
-        uses: MetaMask/action-is-release@v2
+        uses: MetaMask/action-is-release@3cd51b98fa98d1347d06f5961299b0172ee31ae8 # v2.3.0
         with:
           commit-starts-with: 'Release [version],Release v[version],Release/[version],Release/v[version],Release `[version]`'
 
diff --git a/.github/workflows/publish-gh-pages.yml b/.github/workflows/publish-gh-pages.yml
index f1aa65ffaf..27a17fdf8a 100644
--- a/.github/workflows/publish-gh-pages.yml
+++ b/.github/workflows/publish-gh-pages.yml
@@ -26,16 +26,16 @@ jobs:
       id-token: write
     steps:
       - name: Download artifact
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: ${{ inputs.artifact_name }}
           path: _site/${{ inputs.destination_dir }}
 
       - name: Upload Pages artifact
-        uses: actions/upload-pages-artifact@v5
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
         with:
           path: _site
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v5
+        uses: actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346 # v5.0.1
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index b63689de47..44ec99da2c 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -13,15 +13,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: true
-      - uses: MetaMask/action-publish-release@v3
+      - uses: MetaMask/action-publish-release@f01f1be110d60fb07d86c880ce3d6bdb353524d3 # v3.3.1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - run: yarn build
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: publish-release-artifacts-${{ github.sha }}
           include-hidden-files: true
@@ -41,16 +41,16 @@ jobs:
     needs: publish-release
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: true
           ref: ${{ github.sha }}
       - name: Restore build artifacts
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: publish-release-artifacts-${{ github.sha }}
       - name: Dry run publish to NPM
-        uses: MetaMask/action-npm-publish@v6
+        uses: MetaMask/action-npm-publish@18df42148c35aabb98e00f9fda127d421af141df # v6.5.0
 
   publish-npm:
     name: Publish to NPM
@@ -64,15 +64,15 @@ jobs:
     needs: publish-npm-dry-run
     steps:
       - name: Checkout and setup environment
-        uses: MetaMask/action-checkout-and-setup@v3
+        uses: MetaMask/action-checkout-and-setup@0543b5929698c71e3ccc6ed24eac87825669b5de # v3.5.0
         with:
           is-high-risk-environment: true
           ref: ${{ github.sha }}
       - name: Restore build artifacts
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: publish-release-artifacts-${{ github.sha }}
       - name: Publish to NPM
-        uses: MetaMask/action-npm-publish@v6
+        uses: MetaMask/action-npm-publish@18df42148c35aabb98e00f9fda127d421af141df # v6.5.0
         with:
           npm-token: ${{ secrets.NPM_TOKEN }}