diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index f2ee2fa..c3d5eff 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -14,6 +14,6 @@ jobs:
       - name: Download Earthly v0.8.6.
         run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
       - name: Checkout code.
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Compile.
         run: earthly --ci +compile
diff --git a/.github/workflows/conventional-commits.yml b/.github/workflows/conventional-commits.yml
index aa2f88e..4552b94 100644
--- a/.github/workflows/conventional-commits.yml
+++ b/.github/workflows/conventional-commits.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Download Earthly v0.8.6.
         run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
       - name: Checkout code.
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
diff --git a/.github/workflows/git-history.yml b/.github/workflows/git-history.yml
index dab2e30..eb7f464 100644
--- a/.github/workflows/git-history.yml
+++ b/.github/workflows/git-history.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Download Earthly v0.8.6.
         run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
       - name: Checkout code.
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
diff --git a/.github/workflows/github-actions-workflows.yml b/.github/workflows/github-actions-workflows.yml
index aebb806..5d18dd4 100644
--- a/.github/workflows/github-actions-workflows.yml
+++ b/.github/workflows/github-actions-workflows.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Download Earthly v0.8.6.
         run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
       - name: Checkout code.
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check GitHub Actions workflows linting.
         run: earthly +check-github-actions-workflows-linting
   formatting:
@@ -24,6 +24,6 @@ jobs:
       - name: Download Earthly v0.8.6.
         run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.6/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
       - name: Checkout code.
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check formatting.
         run: earthly +check-yaml-formatting