diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bf4cbc6..a125347 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - name: Checkout
-              uses: actions/checkout@v5
+              uses: actions/checkout@v6
 
             - name: PHP-CS-Fixer
               uses: docker://oskarstark/php-cs-fixer-ga
diff --git a/.github/workflows/diff-spec.yml b/.github/workflows/diff-spec.yml
index 00c26a4..191e537 100644
--- a/.github/workflows/diff-spec.yml
+++ b/.github/workflows/diff-spec.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - name: Checkout
-              uses: actions/checkout@v5
+              uses: actions/checkout@v6
 
             - name: Install dependencies
               run: composer update --no-interaction