diff --git a/requirements.txt b/requirements.txt
index da28dbc..ff46932 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ Flask-Login==0.5.0
 mysql-connector-python==8.0.26
 python-dotenv==0.19.0
 cryptography==2.0
-pypinyin
-shutil
-flask_migrate
\ No newline at end of file
+pypinyin==0.51.0
+flask_migrate==4.0.7
+flask_mail==0.10.0
\ No newline at end of file