diff --git a/.github/workflows/lock-update.yaml b/.github/workflows/lock-update.yaml
index 575bc3f..0692473 100644
--- a/.github/workflows/lock-update.yaml
+++ b/.github/workflows/lock-update.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
         with:
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index fb4bdbb..e6f3e8c 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install nix
         uses: cachix/install-nix-action@v30