diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index aca317e..fe7bcc2 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -27,7 +27,7 @@ jobs:
                   git config --global core.eol lf
 
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Install PHP
               uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/mutation-tests.yml b/.github/workflows/mutation-tests.yml
index 411c451..3de5d3b 100644
--- a/.github/workflows/mutation-tests.yml
+++ b/.github/workflows/mutation-tests.yml
@@ -29,7 +29,7 @@ jobs:
                   git config --global core.eol lf
 
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Install PHP
               uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/prettier.yml b/.github/workflows/prettier.yml
index 19d23e8..3e7e666 100644
--- a/.github/workflows/prettier.yml
+++ b/.github/workflows/prettier.yml
@@ -11,7 +11,7 @@ jobs:
 
         steps:
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Install the Nix package manager
               uses: cachix/install-nix-action@v31
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index e4abd39..138f4fa 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -15,7 +15,7 @@ jobs:
 
         steps:
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Determine tag
               id: tag_name
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index c6a3eef..a05a087 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -27,7 +27,7 @@ jobs:
                   git config --global core.eol lf
 
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Install PHP
               uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8baffc6..f47df70 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,7 +17,7 @@ jobs:
         outputs:
             version: ${{ steps.supported-versions-matrix.outputs.version }}
         steps:
-            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+            - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
             - id: supported-versions-matrix
               uses: WyriHaximus/github-action-composer-php-versions-in-range@v1
     tests:
@@ -37,7 +37,7 @@ jobs:
                   git config --global core.eol lf
 
             - name: Checkout
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
             - name: Install PHP
               uses: shivammathur/setup-php@v2