diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 5fe2892..711269e 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -14,7 +14,7 @@ jobs:
   nix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - uses: cachix/cachix-action@v12
diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index cd361a2..cbbdd2b 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: DeterminateSystems/nix-installer-action@main