diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 000f7bd..594ecec 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.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/dependency-submission-example.yml b/.github/workflows/dependency-submission-example.yml
index bfdee4b..6f4caad 100644
--- a/.github/workflows/dependency-submission-example.yml
+++ b/.github/workflows/dependency-submission-example.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout Repository'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/setup-node@v3
       # As of 2023-02-22, the ubuntu-latest image uses npm v8.3.1. This version
       # has a bug that prevents loading dependency-submission-toolkit in the
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index ae36e87..79eb085 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the project
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Use Node.js 16.x (LTS)
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fb59aa7..9ae3c53 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
   build: # make sure build/ci work properly
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       # As of 2023-02-22, the ubuntu-latest image uses npm v8.3.1. This version
       # has a bug that prevents loading dependency-submission-toolkit in the
       # 'example/' project. npm v8.4.1 (same version in Codespace created on