diff --git a/.github/workflows/python-CI.yml b/.github/workflows/python-CI.yml
index d1b7198..b4c6111 100644
--- a/.github/workflows/python-CI.yml
+++ b/.github/workflows/python-CI.yml
@@ -49,6 +49,7 @@ jobs:
         run: exit 1
 
       - name: Upload to Codecov
+        if: github.ref == 'refs/heads/main'
         uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
@@ -58,7 +59,7 @@ jobs:
           verbose: true
 
       - name: Upload test results to Codecov
-        if: ${{ !cancelled() }}
+        if: github.ref == 'refs/heads/main' && !cancelled()
         uses: codecov/test-results-action@v1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}