diff --git a/README.Rmd b/README.Rmd
index 43db2dd..ac473f5 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -67,7 +67,7 @@ bibtex::write.bib(
 <!-- badges: start -->
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://choosealicense.com/licenses/mit/)
-[![Codecov test coverage](https://codecov.io/gh/MartinSchobben/Oceanexplorer/branch/master/graph/badge.svg)](https://app.codecov.io/gh/MartinSchobben/Oceanexplorer?branch=master)
+[![Codecov test coverage](https://codecov.io/gh/MartinSchobben/Oceanexplorer/branch/main/graph/badge.svg)](https://app.codecov.io/gh/MartinSchobben/Oceanexplorer?branch=main)
 [![R-CMD-check](https://github.com/MartinSchobben/oceanexplorer/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/MartinSchobben/oceanexplorer/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
diff --git a/README.md b/README.md
index 62cd08c..2ea571b 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ state and is being actively
 developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://choosealicense.com/licenses/mit/)
 [![Codecov test
-coverage](https://codecov.io/gh/MartinSchobben/Oceanexplorer/branch/master/graph/badge.svg)](https://app.codecov.io/gh/MartinSchobben/Oceanexplorer?branch=master)
+coverage](https://codecov.io/gh/MartinSchobben/Oceanexplorer/branch/main/graph/badge.svg)](https://app.codecov.io/gh/MartinSchobben/Oceanexplorer?branch=main)
 [![R-CMD-check](https://github.com/MartinSchobben/oceanexplorer/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/MartinSchobben/oceanexplorer/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->