diff --git a/ec2.py b/ec2.py
index 7bc1da3..00fac04 100644
--- a/ec2.py
+++ b/ec2.py
@@ -1,5 +1,6 @@
 import boto3
 from boto3.s3.transfer import S3Transfer
+from boto3.s3.transfer import TransferConfig
 import base64
 import os
 
@@ -271,7 +272,8 @@ def create_s3_bucket(s3_client, bucket_name):
     return bucket_name
 
 def upload_files_to_s3(s3_client, bucket_name, folder_path):
-    transfer = S3Transfer(s3_client)
+    config = TransferConfig(multipart_chunksize=50 * 1024 * 1024)
+    transfer = S3Transfer(s3_client, config)
     for root, dirs, files in os.walk(folder_path):
         for file in files:
             file_path = os.path.join(root, file)