diff --git a/setup.py b/setup.py
index 139c6e4..52a48a2 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name="trustauthx",
-    version="0.7.3",
+    version="0.8.1",
     description="Official connector SDK for TrustAuthx",
     long_description=long_description,
     long_description_content_type="text/markdown",  # This is important!
diff --git a/trustauthx/authlite.py b/trustauthx/authlite.py
index 3252ee1..7397fad 100644
--- a/trustauthx/authlite.py
+++ b/trustauthx/authlite.py
@@ -4,6 +4,7 @@
 from dataclasses import asdict
 from functools import wraps
 from lib2to3.pgen2.parse import ParseError
+from typing import Union
 
 import requests
 from jose import JWTError, jwt
@@ -687,7 +688,7 @@ def re_auth(self, code):
                 )
             )
 
-    def get_user(self, token, return_class=False) -> User | dict:
+    def get_user(self, token, return_class=False) -> Union[User, dict]:
         """
         Validates the given authentication token and returns user data.
 
@@ -919,12 +920,12 @@ def _re_init_roles(self) -> _Roles:
     def attach_role(
         self,
         uid: str,
-        rol_ids: str | list,
+        rol_ids: Union[str, list],
         signoff_session_and_assign=False,
         refresh_token=None,
         access_token=None,
         return_class: bool = False,
-    ) -> dict | SignOffSessionReplace:
+    ) -> Union[dict, SignOffSessionReplace]:
         """
         Attaches a role to a user.
 
@@ -984,12 +985,12 @@ def attach_role(
     def remove_role(
         self,
         uid: str,
-        rol_ids: str | list,
+        rol_ids: Union[str, list],
         signoff_session_and_assign=False,
         refresh_token=None,
         access_token=None,
         return_class: bool = False,
-    ) -> dict | SignOffSessionReplace:
+    ) -> Union[dict, SignOffSessionReplace]:
         """
         Removes a role from a user.
 
@@ -1049,13 +1050,13 @@ def remove_role(
     def update_role(
         self,
         uid: str,
-        rol_ids_to_add: str | list,
-        rol_ids_to_remove: str | list,
+        rol_ids_to_add: Union[str, list],
+        rol_ids_to_remove: Union[str, list],
         signoff_session_and_assign=False,
         refresh_token=None,
         access_token=None,
         return_class: bool = False,
-    ) -> dict | SignOffSessionReplace:
+    ) -> Union[dict, SignOffSessionReplace]:
         """
         Updates a user's roles by adding and/or removing roles.