diff --git a/jimsite/common.py b/jimsite/common.py
index 1822192..475a2d2 100644
--- a/jimsite/common.py
+++ b/jimsite/common.py
@@ -6,11 +6,12 @@ import logging
 from dotmap import DotMap
 from typing import Optional
 from datetime import date, datetime
+from typing import Union
 
 logger = logging.getLogger(__name__)
 
 
-def run(cmd: list|str, log_errors = True, debug = True) -> tuple:
+def run(cmd: Union[list,str], log_errors = True, debug = True) -> tuple:
 
     if isinstance(cmd, str):
         cmd = cmd.split(' ')