diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6b9d1eae..1f9c31c8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
     steps:
      # Checkout the repo.
      - name: Checkout Python Fire repository
-       uses: actions/checkout@v4
+       uses: actions/checkout@v5
 
      # Set up Python environment.
      - name: Set up Python ${{ matrix.python-version }}