diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af0dd9f6..c3e8fc62 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: setup Node.js
         uses: actions/setup-node@v4
         with:
@@ -25,7 +25,7 @@ jobs:
     name: Nix Flake Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup nix
         uses: ./.github/actions/setup-nix
         with:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 01145a32..3ea9f89c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,7 +16,7 @@ jobs:
       pages: write
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup nix
         uses: ./.github/actions/setup-nix
         with:
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index fc3504a1..ddc23d44 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -19,7 +19,7 @@ jobs:
           git_user_signingkey: true
           git_commit_gpgsign: true
           git_config_global: true
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup nix
         uses: ./.github/actions/setup-nix
         with: