diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ee8abf90..cdf825146 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,4 +57,4 @@ jobs:
         uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          files: ./coverage.xml !./festim/_version.py
+          files: ./coverage.xml,!./festim/_version.py