diff --git a/README.md b/README.md
index b279cf2..217084d 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ data-management
 ├─ general_function.py                                      # All customize general code function to import in run_extract_load.py
 ├─ README.md                                                # Project guide
 ├─ requirements.txt                                         # Install needed library
-└─ run_extract_load.py                                      # Main code to run the extract load process
+└─ main.py                                                 # Main code to run the extract load process
 
 ```
 
diff --git a/exchange/extract/exchange_extract_function.py b/exchange/extract/exchange_extract_function.py
index 2a1fdd1..7fd28e8 100644
--- a/exchange/extract/exchange_extract_function.py
+++ b/exchange/extract/exchange_extract_function.py
@@ -1,4 +1,3 @@
-import json
 import csv
 from operator import concat
 import mysql.connector
diff --git a/exchange/load/exchange_load_function.py b/exchange/load/exchange_load_function.py
index 09ff08f..fa57e23 100644
--- a/exchange/load/exchange_load_function.py
+++ b/exchange/load/exchange_load_function.py
@@ -1,6 +1,4 @@
-import os
 from google.cloud import storage
-import json
 
 def login_cloudstorage_credential(credential):
     try:
diff --git a/run_extract_load.py b/main.py
similarity index 98%
rename from run_extract_load.py
rename to main.py
index 3e6a0e5..47cc900 100644
--- a/run_extract_load.py
+++ b/main.py
@@ -1,7 +1,5 @@
-import json
 import os
 from os import walk
-from operator import concat
 import general_function
 import exchange.extract.exchange_extract_function as ex_extract_func
 import exchange.load.exchange_load_function as ex_load_func
diff --git a/requirements.txt b/requirements.txt
index 939e2f8..c4ef43b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-mysql_connector_repackaged==0.3.1
+mysql-connector-python==8.0.30
 google-cloud-storage==2.5.0