diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0f0419f..bde6521 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -17,7 +17,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: DeterminateSystems/nix-installer-action@main
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index b0492f1..813ea91 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install Determinate Nix
         uses: DeterminateSystems/determinate-nix-action@v3
       - uses: DeterminateSystems/magic-nix-cache-action@main