diff --git a/README.md b/README.md
index 7663ea4..17e4f90 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,8 @@ Package ants implements a fixed goroutine pool for managing and recycling a mass
 ## Features:
 
 - Automatically managing and recycling a massive number of goroutines.
-- Friendly interfaces: submitting tasks, getting the number of running goroutines, readjusting capacity of pool dynamically, closing pool.
+- Periodically clearing the overdue goroutines.
+- Friendly interfaces: submitting tasks, getting the number of running goroutines, readjusting capacity of pool dynamically, closing pool.
 - Efficient in memory usage and it even achieves higher performance than unlimited goroutines in golang.