diff --git a/.github/workflows/create-pdf.yml b/.github/workflows/create-pdf.yml
index 0d9f635..8ce764c 100644
--- a/.github/workflows/create-pdf.yml
+++ b/.github/workflows/create-pdf.yml
@@ -9,7 +9,7 @@ jobs:
   makepdfs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: mkrakowitzer/actions-makepdfs@master
       if: github.ref == 'refs/heads/main'
       with: