diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 04d73ea..2426f37 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,7 +33,7 @@ jobs:
           - "2.17.1"  # Ubuntu LTS 18.04 bionic
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Nix
       uses: cachix/install-nix-action@v22
     - name: Run tests
@@ -53,7 +53,7 @@ jobs:
     runs-on: macOS-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Nix
       uses: cachix/install-nix-action@v22
     - name: Run tests
@@ -72,7 +72,7 @@ jobs:
     runs-on: windows-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Go
       uses: actions/setup-go@v4
       with: