diff --git a/rollbar/lib/transforms/shortener.py b/rollbar/lib/transforms/shortener.py
index d996162e..fa8d7a76 100644
--- a/rollbar/lib/transforms/shortener.py
+++ b/rollbar/lib/transforms/shortener.py
@@ -4,7 +4,7 @@
 import reprlib
 
 from collections.abc import Mapping
-from typing import Union
+from typing import Union, Tuple
 
 from rollbar.lib import (
     integer_types, key_in, key_depth, sequence_types,
@@ -26,7 +26,7 @@
 }
 
 
-def _max_left_right(max_len: int, seperator_len: int) -> tuple[int, int]:
+def _max_left_right(max_len: int, seperator_len: int) -> Tuple[int, int]:
     left = max(0, (max_len-seperator_len)//2)
     right = max(0, max_len-seperator_len-left)
     return left, right