diff --git a/ants.go b/ants.go
index d116067..422b0b4 100644
--- a/ants.go
+++ b/ants.go
@@ -32,7 +32,7 @@ const (
 	DefaultAntsPoolSize = math.MaxInt32
 
 	// DefaultCleanIntervalTime is the interval time to clean up goroutines.
-	DefaultCleanIntervalTime = 10
+	DefaultCleanIntervalTime = 5
 )
 
 // Init a instance pool when importing ants.