diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 222c95e..afdcf15 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ${{ matrix.os.name }}
     steps:
       - name: ⬆️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install yq
         if: ${{ matrix.os.name == 'windows-2025' }}
         run: choco install yq
@@ -67,7 +67,7 @@ jobs:
     if: github.event_name != 'pull_request'
     steps:
       - name: ⬆️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set Docker tag
         id: docker_tag
         run: |
@@ -109,7 +109,7 @@ jobs:
       - build-server
     steps:
       - name: ⬆️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         env:
           CI_PAT: ${{ secrets.CI_PAT }}
         with:
diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 3a48822..46fdd1e 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -14,9 +14,9 @@ jobs:
         working-directory: ${{ matrix.projects }}
     steps:
       - name: ⬆️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - uses: dart-lang/setup-dart@v1
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Print Dart SDK version
         run: |
           dart --version
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index e7d4503..c8b7564 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -14,7 +14,7 @@ jobs:
       run:
         working-directory: docs
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install pnpm
         uses: pnpm/action-setup@v4
         with:
@@ -49,7 +49,7 @@ jobs:
         working-directory: server
     steps:
       - name: ⬆️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Extract Dart SDK version from pubspec.yaml
         id: dart_version
         shell: bash
diff --git a/.github/workflows/post_release.yml b/.github/workflows/post_release.yml
index d5a9cb6..141d85e 100644
--- a/.github/workflows/post_release.yml
+++ b/.github/workflows/post_release.yml
@@ -18,7 +18,7 @@ jobs:
       IS_PRERELEASE: ${{ github.event.release.prerelease }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}