diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 996d9198..14712c27 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
         os: [ubuntu-20.04, ubuntu-22.04]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Download RtBrick libdict
       shell: bash
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 066c8d28..8b28ff7d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -35,7 +35,7 @@ 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/release.yml b/.github/workflows/release.yml
index acb2d97a..afad3d40 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
           echo "SOURCE_BRANCH=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT
           echo "SOURCE_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ncipollo/release-action@v1
       with:
         tag: ${{ steps.ref_name.outputs.SOURCE_TAG }}
@@ -36,7 +36,7 @@ jobs:
         os: [ubuntu-20.04, ubuntu-22.04]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Download RtBrick libdict
       shell: bash