diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 72b142c..e4a4e35 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -15,7 +15,7 @@ jobs:
     name: Build and Publish Docker images
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Docker meta
         id: docker_meta
         uses: docker/metadata-action@v5
diff --git a/.github/workflows/markdown-lint.yml b/.github/workflows/markdown-lint.yml
index 29b9002..84e4633 100644
--- a/.github/workflows/markdown-lint.yml
+++ b/.github/workflows/markdown-lint.yml
@@ -8,7 +8,7 @@ jobs:
     name: runner / markdownlint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: markdownlint
         uses: reviewdog/action-markdownlint@v0
         with:
diff --git a/.github/workflows/trivy.yml b/.github/workflows/trivy.yml
index 33ee70d..639e616 100644
--- a/.github/workflows/trivy.yml
+++ b/.github/workflows/trivy.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Build an image from Dockerfile
         run: |
@@ -41,6 +41,6 @@ jobs:
           ignore-unfixed: true
 
       - name: Upload Trivy scan results to GitHub Security tab
-        uses: github/codeql-action/upload-sarif@v2
+        uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: 'trivy-results.sarif'
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 2cd1d64..7cc5f41 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -9,7 +9,7 @@ jobs:
    unit-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Run tests using Docker
         working-directory: .docker
         run: ./docker-tests.sh