diff --git a/.github/workflows/smoke-test.yml b/.github/workflows/smoke-test.yml
index 7f0914b..4af3c10 100644
--- a/.github/workflows/smoke-test.yml
+++ b/.github/workflows/smoke-test.yml
@@ -19,7 +19,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v23
       with:
         extra_nix_config: |
diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index ed51209..020ec2c 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -15,7 +15,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v23
       with:
         nix_path: nixpkgs=channel:nixos-unstable
diff --git a/.github/workflows/update-doc.yml b/.github/workflows/update-doc.yml
index 4abfea2..13671dc 100644
--- a/.github/workflows/update-doc.yml
+++ b/.github/workflows/update-doc.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v23
       with:
         install_url: https://nixos-nix-install-tests.cachix.org/serve/vij683ly7sl95nnhb67bdjjfabclr85m/install