diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 3fb993c2..93faecec 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -14,7 +14,7 @@ jobs:
     steps:
       # Boilerplate
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       # We need Ghostscript for XeTeX tests.
       - run: sudo apt-get update && sudo apt-get install ghostscript
       - name: Install TeX Live
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index b566667f..98ac8bc0 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -12,7 +12,7 @@ jobs:
     steps:
       # Boilerplate
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       # We need Ghostscript for XeTeX tests.
       - run: sudo apt-get update && sudo apt-get install ghostscript
       - name: Install TeX Live