diff --git a/.github/workflows/coding-standard.yml b/.github/workflows/coding-standard.yml
index 2c0d7f5..bb16fc5 100644
--- a/.github/workflows/coding-standard.yml
+++ b/.github/workflows/coding-standard.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@2.35.5"
diff --git a/.github/workflows/docs-build-temp.yml b/.github/workflows/docs-build-temp.yml
index a762419..988a592 100644
--- a/.github/workflows/docs-build-temp.yml
+++ b/.github/workflows/docs-build-temp.yml
@@ -10,7 +10,7 @@ jobs:
     name: Deploy docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/docs-build-try.yml b/.github/workflows/docs-build-try.yml
index aa1b5ac..bd943e1 100644
--- a/.github/workflows/docs-build-try.yml
+++ b/.github/workflows/docs-build-try.yml
@@ -11,7 +11,7 @@ jobs:
     name: Deploy docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/docs-build.yml b/.github/workflows/docs-build.yml
index bbad5fe..4c28554 100644
--- a/.github/workflows/docs-build.yml
+++ b/.github/workflows/docs-build.yml
@@ -13,7 +13,7 @@ jobs:
     name: Deploy docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/docs-check.yml b/.github/workflows/docs-check.yml
index c583b9b..34a06e2 100644
--- a/.github/workflows/docs-check.yml
+++ b/.github/workflows/docs-check.yml
@@ -25,7 +25,7 @@ jobs:
 
         steps:
             - name: "Checkout"
-              uses: actions/checkout@v5
+              uses: actions/checkout@v6
 
             - name: "Install PHP"
               uses: "shivammathur/setup-php@2.35.5"
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index b5a5acd..40cedb6 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@2.35.5"
diff --git a/.github/workflows/release-on-milestone-closed-triggering-release-event.yml b/.github/workflows/release-on-milestone-closed-triggering-release-event.yml
index 67fae35..8af28e8 100644
--- a/.github/workflows/release-on-milestone-closed-triggering-release-event.yml
+++ b/.github/workflows/release-on-milestone-closed-triggering-release-event.yml
@@ -18,7 +18,7 @@ jobs:
 
         steps:
             - name: "Checkout"
-              uses: actions/checkout@v5
+              uses: actions/checkout@v6
 
             - name: "Release"
               uses: "laminas/automatic-releases@v1"