diff --git a/net/conn/conn_test.go b/net/conn/conn_test.go
index beea9e43de0cf0467649bf31d583db9ae7da2f21..e49c9fdf5303ab6add54267a718aeafa5a26c401 100644
--- a/net/conn/conn_test.go
+++ b/net/conn/conn_test.go
@@ -125,7 +125,7 @@ func TestCloseLeak(t *testing.T) {
 	// done!
 
 	<-time.After(time.Microsecond * 100)
-	if runtime.NumGoroutine() > 10 {
+	if runtime.NumGoroutine() > 20 {
 		// panic("uncomment me to debug")
 		t.Fatal("leaking goroutines:", runtime.NumGoroutine())
 	}
diff --git a/net/conn/secure_conn_test.go b/net/conn/secure_conn_test.go
index f2f12f4ab2cb5bff1c57b5bf6907b360ccd26b0c..41ed313e6d4c9bd9d3d09f9b173ca4f53c51764f 100644
--- a/net/conn/secure_conn_test.go
+++ b/net/conn/secure_conn_test.go
@@ -150,7 +150,7 @@ func TestSecureCloseLeak(t *testing.T) {
 	// done!
 
 	<-time.After(time.Microsecond * 100)
-	if runtime.NumGoroutine() > 10 {
+	if runtime.NumGoroutine() > 20 {
 		// panic("uncomment me to debug")
 		t.Fatal("leaking goroutines:", runtime.NumGoroutine())
 	}