diff --git a/.github/workflows/apidocs.yaml b/.github/workflows/apidocs.yaml
index c2b86e88..a22acb29 100644
--- a/.github/workflows/apidocs.yaml
+++ b/.github/workflows/apidocs.yaml
@@ -20,7 +20,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true  # Fetch Hugo themes (true OR recursive)
           fetch-depth: 0    # Fetch all history for .GitInfo and .Lastmod
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fd848b4b..9eed688a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
     env:
       JAVA_OPTS: "-Xmx8g -Dfile.encoding=UTF-8 -Djava.awt.headless=true -Dkotlin.daemon.jvm.options=-Xmx6g"
     steps:
-      - uses: actions/checkout@v5
+      - 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 329aa595..1a7789dd 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/gradle-publish.yml b/.github/workflows/gradle-publish.yml
index bdc64fa3..d9b28012 100644
--- a/.github/workflows/gradle-publish.yml
+++ b/.github/workflows/gradle-publish.yml
@@ -23,7 +23,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
diff --git a/.github/workflows/samples.yml b/.github/workflows/samples.yml
index 7ef265de..472110d9 100644
--- a/.github/workflows/samples.yml
+++ b/.github/workflows/samples.yml
@@ -31,7 +31,7 @@ jobs:
     env:
       JAVA_OPTS: "-Xmx8g -Dfile.encoding=UTF-8 -Djava.awt.headless=true -Dkotlin.daemon.jvm.options=-Xmx6g"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5