diff --git a/02-Keyword/tsg_common/StmpHandle.robot b/02-Keyword/tsg_common/StmpHandle.robot
index 161b240..fa85bfd 100644
--- a/02-Keyword/tsg_common/StmpHandle.robot
+++ b/02-Keyword/tsg_common/StmpHandle.robot
@@ -1,5 +1,5 @@
 *** Settings ***
-Library           Smtp3Library
+Library           Smtp4Library
 
 *** Keywords ***
 EmailLogin