diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ceb9eaa426..37a21e1e73 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,7 +28,7 @@ jobs:
       CXX: ${{ matrix.cxx }}
       LD: ${{ matrix.cc }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -43,7 +43,7 @@ jobs:
       MRUBY_CONFIG: ci/gcc-clang
       CC: clang
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -58,7 +58,7 @@ jobs:
       MRUBY_CONFIG: ci/gcc-clang
       CC: gcc
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -73,7 +73,7 @@ jobs:
       MRUBY_CONFIG: ci/gcc-clang
       CC: clang
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -88,7 +88,7 @@ jobs:
       MRUBY_CONFIG: ci/gcc-clang
       CC: clang
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -103,7 +103,7 @@ jobs:
       MRUBY_CONFIG: ci/gcc-clang
       CC: gcc
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Compiler version
@@ -117,7 +117,7 @@ jobs:
     env:
       MRUBY_CONFIG: ci/msvc
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ruby version
         run: ruby -v
       - name: Build and test
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 4e1cc05218..83d04fc805 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 83e7f1706c..7ccc7288f9 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check Out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install
         run: wget -O - -q https://git.io/misspell | sh -s -- -b .
       - name: Run misspell
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check Out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1d210cc79d..0a1c32401b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
     steps:
       - name: "Checkout ${{ github.ref_name }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Builds
         id: builds
         run: |
diff --git a/.github/workflows/super-linter.yml b/.github/workflows/super-linter.yml
index 99d24bd946..14f0679989 100644
--- a/.github/workflows/super-linter.yml
+++ b/.github/workflows/super-linter.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           # Full git history is needed to get a proper list of changed files within `super-linter`
           fetch-depth: 0