diff --git a/URDF_Exporter/utils/utils.py b/URDF_Exporter/utils/utils.py
index 10f6b1a..925b833 100644
--- a/URDF_Exporter/utils/utils.py
+++ b/URDF_Exporter/utils/utils.py
@@ -9,7 +9,7 @@
 import os.path, re
 from xml.etree import ElementTree
 from xml.dom import minidom
-from distutils.dir_util import copy_tree
+from shutil import copytree
 import fileinput
 import sys
 
@@ -149,7 +149,7 @@ def copy_package(save_dir, package_dir):
     except: pass 
     try: os.mkdir(save_dir + '/urdf')
     except: pass 
-    copy_tree(package_dir, save_dir)
+    copytree(package_dir, save_dir, dirs_exist_ok=True)
 
 def update_cmakelists(save_dir, package_name):
     file_name = save_dir + '/CMakeLists.txt'