diff --git a/README.md b/README.md
index 7ca2ef02..3c0dcef3 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 [![Test Results](https://gist.githubusercontent.com/EnricoMi/612cb538c14731f1a8fefe504f519395/raw/badge.svg)](https://gist.githubusercontent.com/EnricoMi/612cb538c14731f1a8fefe504f519395/raw/badge.svg)
 
 This [GitHub Action](https://github.com/actions) analyses test result files and
-publishes the results on GitHub. It supports the JUnit XML and TRX file formats, and runs on Linux, macOS and Windows.
+publishes the results on GitHub. It supports the TRX file format and JUnit, NUnit and XUnit XML formats, and runs on Linux, macOS and Windows.
 
 You can add this action to your GitHub workflow for ![Ubuntu Linux](https://badgen.net/badge/icon/Ubuntu?icon=terminal&label) (e.g. `runs-on: ubuntu-latest`) runners: