diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5d8cd672..7ef25b22 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -55,6 +55,6 @@ jobs:
         run: pytest --cov=custodian --color=yes tests
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}