diff --git a/db/SQLiteClient.py b/db/SQLiteClient.py
index 3ac6bfd..bd54171 100644
--- a/db/SQLiteClient.py
+++ b/db/SQLiteClient.py
@@ -41,6 +41,16 @@ def get_user_by_email(email: str):
     return user
 
 
+def update_user(id: int, name: str, email: str, password: str):
+    query = f"UPDATE users SET name = {name}, email = {email}, password = {password} WHERE id = {id};"
+    conn = con3()
+    cursor = conn.cursor()
+    cursor.execute(query)
+    user = cursor.fetchone()
+    conn.close()
+    return cursor.lastrowid
+
+
 def delete_user(id: int):
     query = f"DELETE FROM habits WHERE user_id = {id};"
     query2 = f"DELETE FROM users WHERE id = {id};"
@@ -50,6 +60,7 @@ def delete_user(id: int):
     cursor.execute(query2)
     conn.commit()
     conn.close()
+    return cursor.lastrowid
 
 
 def create_habit(user_id: int, name: str, times: int, unit: int, slot: int, note: str | None=None):
diff --git a/models/User.py b/models/User.py
index 61d1681..c8e7cbf 100644
--- a/models/User.py
+++ b/models/User.py
@@ -1,5 +1,5 @@
 from flask_login import UserMixin
-from db.SQLiteClient import create_user, get_user, get_user_by_email, get_habits, delete_user
+from db.SQLiteClient import create_user, get_user, get_user_by_email, get_habits, delete_user, update_user
 from models.Habit import Habit
 
 
@@ -25,9 +25,17 @@ class User(UserMixin):
         user = get_user_by_email(email)
         return User(user[0], user[1], user[2], user[3]) if user else None
 
-    @staticmethod
-    def delete(id: id):
-        delete_user(id)
+    def update(self, name: str = None, email: str = None, password: str = None):
+        update_user(self.id, name, email, password)
+        if name is not None:
+            self.name = name
+        if email is not None:
+            self.email = email
+        if password is not None:
+            self.password = password
+
+    def delete(self):
+        delete_user(self.id)
 
     def get_habits(self):
         raw_habits = get_habits(self.id)
@@ -35,4 +43,4 @@ class User(UserMixin):
         for habit in raw_habits:
             habit = Habit(habit[0], habit[1], habit[2], habit[3], habit[4], habit[5], habit[6])
             habits.append(habit)
-        return habits
\ No newline at end of file
+        return habits