diff --git a/sample.py b/sample.py
index 009c8c4..c9af5f4 100644
--- a/sample.py
+++ b/sample.py
@@ -7,7 +7,7 @@ motorB = Motor('B')
 motorA.start(50)
 motorB.start(50)
 
-time.sleep(3)
+time.sleep(4)
 
 motorA.stop()
-motorB.stop()
\ No newline at end of file
+motorB.stop()