diff --git a/dislocker.py b/dislocker.py
index 50afa26..e946aec 100644
--- a/dislocker.py
+++ b/dislocker.py
@@ -40,13 +40,13 @@ class Cert():
 
     def register(self, username, userid):
         cursor = self.db.cursor()
-        insert_sql = "INSERT INTO user_list (discord_username, discord_userid) VALUES (%s, %s);"
+        insert_sql = "INSERT INTO user_list (discord_username, discord_userid) VALUES (?, ?);"
         cursor.execute(insert_sql, (username, userid))
         self.db.commit()
 
     def get_username(self, username, password):
         cursor = self.db.cursor()
-        get_sql = "SELECT * FROM web_auth WHERE username = %s AND password = %s "
+        get_sql = "SELECT * FROM web_auth WHERE username = ? AND password = ? "
         cursor.execute(get_sql, (username, password))
         result = cursor.fetchall()
         print(result)
@@ -55,14 +55,8 @@ class Cert():
         elif result[0][1] == username and result[0][2] == password:
             return 0
 
-class Web(flask.Flask):
-    async def temp(self):
-        print("")
-
 
 cert = Cert()
-print(cert.get_username("suti7", "0126"))
-
 
 bot_config_path = "./config/bot.json"
 if not os.path.isfile(bot_config_path):
diff --git a/webui.py b/webui.py
index db12a9d..2d67342 100644
--- a/webui.py
+++ b/webui.py
@@ -1,6 +1,6 @@
 from flask import Flask, request, render_template, redirect, url_for
 from flask_login import LoginManager, UserMixin, login_user, login_required, logout_user
-import psycopg2
+import sqlite3
 
 app = Flask(__name__, static_folder="./resource/")
 app.secret_key = 'your_secret_key'
@@ -9,17 +9,17 @@ login_manager.init_app(app)
 
 class Cert():
     def __init__(self):
-        self.db = psycopg2.connect("host=localhost dbname=dislocker user=suti7 password=testing")
+        self.db = sqlite3.connect("host=localhost dbname=dislocker user=suti7 password=testing")
     
     def register(self, username, userid):
         cursor = self.db.cursor()
-        insert_sql = "INSERT INTO user_list (discord_username, discord_userid) VALUES (%s, %s);"
+        insert_sql = "INSERT INTO user_list (discord_username, discord_userid) VALUES (?, ?)"
         cursor.execute(insert_sql, (username, userid))
         self.db.commit()
 
     def login(self, username, password):
         cursor = self.db.cursor()
-        get_sql = "SELECT * FROM web_auth WHERE username = %s AND password = %s "
+        get_sql = "SELECT * FROM web_auth WHERE username = ? AND password = ? "
         cursor.execute(get_sql, (username, password))
         result = cursor.fetchall()
         print(result)