diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f46515..d21636f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install nix
         uses: cachix/install-nix-action@v31
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7ce2cbf..a16978e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,7 +26,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ inputs.tag != null && format('refs/tags/{0}', inputs.tag) || '' }}
       - uses: DeterminateSystems/nix-installer-action@v16