diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 3cf4674..d9190b8 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 5b468fc..7053e54 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -25,7 +25,7 @@ jobs:
         java: [ '11', '17', '20' ]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Java
       uses: actions/setup-java@v3
       with:
diff --git a/.github/workflows/javadocs.yml b/.github/workflows/javadocs.yml
index 92e949f..048ed04 100644
--- a/.github/workflows/javadocs.yml
+++ b/.github/workflows/javadocs.yml
@@ -21,7 +21,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with: