diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 169f66f..a8511e3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,7 +41,7 @@ jobs:
         run: uv run pytest --cov-report=xml
 
       - name: Upload test results to Codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false