diff --git a/source.md b/source.md
index 2545cce..ba67973 100644
--- a/source.md
+++ b/source.md
@@ -557,6 +557,7 @@ Simon Binder](https://github.com/simolus3)
 ### Testing
 
 - [flutter_convenient_test](https://github.com/fzyzcjy/flutter_convenient_test) <!--stargazers:fzyzcjy/flutter_convenient_test--> - Tests with action history, time travelling, screenshots, rapid re-execution, video recordings, interactive mode by [fzyzcjy](https://github.com/fzyzcjy)
+- [Patrol](https://github.com/leancodepl/patrol) <!--stargazers:leancodepl/patrol--> - Easy-to-learn, powerful UI testing framework eliminating limitations of `flutter_test`, `integration_test`, and `flutter_driver` by [LeanCode](https://leancode.co)
 
 ### Web