diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3a16179..6b8b667 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -29,7 +29,7 @@ jobs:
       fail-fast: true
       max-parallel: 4
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1
     - name: Set up Java ${{ matrix.jdk }}
diff --git a/.github/workflows/publish-javadoc.yml b/.github/workflows/publish-javadoc.yml
index 0959b3a..74e61a8 100644
--- a/.github/workflows/publish-javadoc.yml
+++ b/.github/workflows/publish-javadoc.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1