diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1a2434e..b18926d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
     name: CI on JDK ${{ matrix.java }} OS ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v4
         with:
           distribution: zulu
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index edea63c..874076f 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -22,7 +22,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up JDK 8
       uses: actions/setup-java@v4
diff --git a/.github/workflows/strong-ci.yml b/.github/workflows/strong-ci.yml
index 1613b9a..c964fa3 100644
--- a/.github/workflows/strong-ci.yml
+++ b/.github/workflows/strong-ci.yml
@@ -22,7 +22,7 @@ jobs:
     name: CI by multiply java versions
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive