diff --git a/.github/workflows/acceptance.yml b/.github/workflows/acceptance.yml
index 6224afd..c6f1bfe 100644
--- a/.github/workflows/acceptance.yml
+++ b/.github/workflows/acceptance.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: macos-14
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Cache Tart images
         uses: actions/cache@v4
diff --git a/.github/workflows/dependency-update.yml b/.github/workflows/dependency-update.yml
index 7e98da7..9d941ba 100644
--- a/.github/workflows/dependency-update.yml
+++ b/.github/workflows/dependency-update.yml
@@ -12,7 +12,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Update Homebrew
         run: brew update
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 405aedd..3d34f9b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -25,7 +25,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index fe70554..d40be66 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -12,7 +12,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install shellcheck
         run: sudo apt-get install -y shellcheck
@@ -48,7 +48,7 @@ jobs:
     name: Formula Audit
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Audit formula style and correctness
         run: |
@@ -64,7 +64,7 @@ jobs:
     runs-on: macos-latest
     needs: [lint, formula-audit]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install CLI tools from Brewfile.ci
         run: |