diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7682a88..11909c7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
   gradle_wrapper_validation:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4   # docs: https://github.com/actions/checkout
+    - uses: actions/checkout@v4.1.1   # docs: https://github.com/actions/checkout
       with:
         fetch-depth: '0'  # https://github.com/shipkit/shipkit-auto-version#fetch-depth-on-ci
     - name: Gradle wrapper validation
@@ -28,7 +28,7 @@ jobs:
     runs-on: windows-latest
     needs: gradle_wrapper_validation
     steps:
-    - uses: actions/checkout@v2.3.4   # docs: https://github.com/actions/checkout
+    - uses: actions/checkout@v4.1.1   # docs: https://github.com/actions/checkout
       with:
         fetch-depth: '0'  # https://github.com/shipkit/shipkit-auto-version#fetch-depth-on-ci
     - name: Run build
@@ -42,7 +42,7 @@ jobs:
     needs: [windows_build, gradle_wrapper_validation]
 
     steps:
-    - uses: actions/checkout@v2.3.4   # docs: https://github.com/actions/checkout
+    - uses: actions/checkout@v4.1.1   # docs: https://github.com/actions/checkout
       with:
         fetch-depth: '0'  # https://github.com/shipkit/shipkit-auto-version#fetch-depth-on-ci
     - name: Run build