diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index bdcbcba1c57..bea67a4e979 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -9,7 +9,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Add problem matchers
         run: |
           # https://github.com/rhysd/actionlint/blob/3a2f2c7/docs/usage.md#problem-matchers
diff --git a/.github/workflows/changeset.yml b/.github/workflows/changeset.yml
index dcf04f65de9..4fba068fc5c 100644
--- a/.github/workflows/changeset.yml
+++ b/.github/workflows/changeset.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'ignore-changeset') }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Include history so Changesets finds merge-base
       - name: Set up environment
diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 33ed4a42937..d168c1e216b 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -20,7 +20,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - run: npm run lint
@@ -34,7 +34,7 @@ jobs:
       CI: true
       GAS: true
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - name: Run tests and generate gas report
@@ -55,7 +55,7 @@ jobs:
     env:
       FORCE_COLOR: 1
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Include history so patch conflicts are resolved automatically
       - name: Set up environment
@@ -81,7 +81,7 @@ jobs:
   tests-foundry:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Set up environment
@@ -92,7 +92,7 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - name: Run coverage
@@ -104,7 +104,7 @@ jobs:
   harnesses:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - name: Compile harnesses
@@ -115,7 +115,7 @@ jobs:
   slither:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - uses: crytic/slither-action@v0.4.1
@@ -123,7 +123,7 @@ jobs:
   codespell:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run CodeSpell
         uses: codespell-project/actions-codespell@v2.2
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 4c926ff8746..a383f330e7c 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - run: bash scripts/git-user-config.sh
diff --git a/.github/workflows/formal-verification.yml b/.github/workflows/formal-verification.yml
index bf4b8b896a6..b4f09e23ec4 100644
--- a/.github/workflows/formal-verification.yml
+++ b/.github/workflows/formal-verification.yml
@@ -20,7 +20,7 @@ jobs:
   apply-diff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Apply patches
         run: make -C fv apply
 
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'formal-verification')
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up environment
@@ -71,7 +71,7 @@ jobs:
   halmos:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - name: Install python
diff --git a/.github/workflows/release-cycle.yml b/.github/workflows/release-cycle.yml
index 527a5003d54..615c06698a2 100644
--- a/.github/workflows/release-cycle.yml
+++ b/.github/workflows/release-cycle.yml
@@ -27,7 +27,7 @@ jobs:
       pull-requests: read
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - id: state
@@ -58,7 +58,7 @@ jobs:
     if: needs.state.outputs.start == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - run: bash scripts/git-user-config.sh
@@ -81,7 +81,7 @@ jobs:
     if: needs.state.outputs.promote == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - run: bash scripts/git-user-config.sh
@@ -102,7 +102,7 @@ jobs:
     if: needs.state.outputs.changesets == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # To get all tags
       - name: Set up environment
@@ -135,7 +135,7 @@ jobs:
     if: needs.state.outputs.publish == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up environment
         uses: ./.github/actions/setup
       - id: pack
@@ -167,7 +167,7 @@ jobs:
     name: Tarball Integrity Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download tarball artifact
         id: artifact
         uses: actions/download-artifact@v6
@@ -189,7 +189,7 @@ jobs:
     env:
       MERGE_BRANCH: merge/${{ github.ref_name }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # All branches
       - name: Set up environment
diff --git a/.github/workflows/upgradeable.yml b/.github/workflows/upgradeable.yml
index 620a91b560d..497f77e53b1 100644
--- a/.github/workflows/upgradeable.yml
+++ b/.github/workflows/upgradeable.yml
@@ -11,7 +11,7 @@ jobs:
     environment: push-upgradeable
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           repository: OpenZeppelin/openzeppelin-contracts-upgradeable
           fetch-depth: 0