diff --git a/.github/workflows/_test.yml b/.github/workflows/_test.yml
index 9f164af..319579c 100644
--- a/.github/workflows/_test.yml
+++ b/.github/workflows/_test.yml
@@ -40,7 +40,7 @@ jobs:
         run: tox -e pytest
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           name: ${{ inputs.python-version }}/${{ inputs.runs-on }}
           files: cov.xml