diff --git a/.github/workflows/cache-cleanup.yml b/.github/workflows/cache-cleanup.yml
index 21a7a1d..5266817 100644
--- a/.github/workflows/cache-cleanup.yml
+++ b/.github/workflows/cache-cleanup.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Delete caches for closed PR
         env:
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: List and clean stale caches
         env:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69ee58d..d885f4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
         java: ['21', '23']
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v5
@@ -69,7 +69,7 @@ jobs:
         java: ['21', '23']
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v5
@@ -96,7 +96,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index d72a912..c5fab81 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 86a6e3f..c3b06af 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Dependency review
         uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 2039683..5a051f9 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,7 +26,7 @@ jobs:
         working-directory: docs
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index be41362..14e2918 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
     environment: release
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5