diff --git a/.github/workflows/npm-publish.yaml b/.github/workflows/npm-publish.yaml
index c257182..fdb8962 100644
--- a/.github/workflows/npm-publish.yaml
+++ b/.github/workflows/npm-publish.yaml
@@ -31,7 +31,9 @@ jobs:
       - name: Unit tests coverage
         run: yarn coverage:unit
 
-      - name: Upload coverage to Codecov
+      - name: Upload unit tests coverage to Codecov
+        # upload unit test code coverage only when merged in master
+        if: github.repository == 'clement-faure/mui-rhf' && (github.ref == 'refs/heads/master')
         uses: codecov/codecov-action@v1
         with:
           flags: unittests # optional
diff --git a/README.md b/README.md
index ca84ad8..98d0fe8 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,7 @@
 <div align="center">
 
 [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/clement-faure/mui-rhf/npm-publish)](https://github.com/clement-faure/mui-rhf/actions/workflows/npm-publish.yaml)
-
-[![codecov](https://codecov.io/gh/clement-faure/mui-rhf/branch/master/graph/badge.svg?token=6B35E5LUCT)](https://codecov.io/gh/clement-faure/mui-rhf)
+[![codecov](https://img.shields.io/codecov/c/github/clement-faure/mui-rhf/master.svg)](https://codecov.io/gh/clement-faure/mui-rhf/branch/master)
 
 Quickly build powerful forms using [Material UI](https://material-ui.com/) and [React Hook Form](https://react-hook-form.com/)