diff --git a/README.md b/README.md
index 468517f..afe7ff8 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ title: Package minimaxApprox
 [![](http://cranlogs.r-pkg.org/badges/last-month/minimaxApprox)](https://cran.r-project.org/package=minimaxApprox)
 [![](https://cranlogs.r-pkg.org/badges/grand-total/minimaxApprox)](https://cran.r-project.org/package=minimaxApprox)
 [![R-CMD-check](https://github.com/aadler/minimaxApprox/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/aadler/minimaxApprox/actions/workflows/R-CMD-check.yaml)
-[![Codecov test coverage](https://codecov.io/gh/aadler/minimaxApprox/branch/master/graph/badge.svg)](https://app.codecov.io/gh/aadler/minimaxApprox?branch=master)
+[![codecov](https://codecov.io/gh/aadler/minimaxApprox/graph/badge.svg?token=6T0B933SEL)](https://app.codecov.io/gh/aadler/minimaxApprox)
 [![OpenSSF Best Practices](https://bestpractices.coreinfrastructure.org/projects/7580/badge)](https://bestpractices.coreinfrastructure.org/projects/7580)
 <!-- badges: end -->