diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 544a21e..d9a3461 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v20
       with:
         nix_path: nixpkgs=channel:nixos-unstable
diff --git a/.github/workflows/update-nixos-23.05.yaml b/.github/workflows/update-nixos-23.05.yaml
index 903f474..a3ef94f 100644
--- a/.github/workflows/update-nixos-23.05.yaml
+++ b/.github/workflows/update-nixos-23.05.yaml
@@ -9,7 +9,7 @@ jobs:
     steps:
     - name: Get date
       run: echo "BRANCH_NAME=nixpkgs-update-$(date +'%Y-%m-%dT%H%M%S')" >> $GITHUB_ENV
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v20
       with:
         nix_path: nixpkgs=channel:nixos-unstable