diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 18701dd9..fac7c9d7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Ubuntu
       run: sudo apt install -y libcppunit-dev zlib1g-dev