diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8a532648..33354496 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -57,22 +57,14 @@ jobs:
           name: test
           path: test_report.xml
       - name: Upload coverage report
+        if: ${{ matrix.python-version }} == 3.9
         uses: actions/upload-artifact@v4
         with:
           name: coverage
-          overwrite: true
           path: coverage.xml
-
-  coveralls:
-    runs-on: ubuntu-latest
-    needs: [test]
-    steps:
-       - name: Download coverage report
-         uses: actions/download-artifact@v4
-         with:
-            name: coverage 
-       - name: Coveralls GitHub Action
-         uses: coverallsapp/github-action@v2.2.3
+      - name: Coveralls GitHub Action
+        if: ${{ matrix.python-version }} == 3.9
+        uses: coverallsapp/github-action@v2.2.3
 
   doc-test:
     runs-on: ubuntu-latest