diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index ec60cbb..1f0b68f 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -43,7 +43,7 @@ jobs:
       run: coveralls --service=github
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        COVERALLS_FLAG_NAME: ${{ matrix.test-name }}
+        COVERALLS_FLAG_NAME: ${{ matrix.python-version }}
         COVERALLS_PARALLEL: true
   coveralls:
     name: Indicate completion to coveralls.io