diff --git a/tap_github/client.py b/tap_github/client.py
index cda1aece..fd1142d3 100644
--- a/tap_github/client.py
+++ b/tap_github/client.py
@@ -3,7 +3,6 @@
 from __future__ import annotations
 
 import email.utils
-import inspect
 import random
 import time
 from typing import TYPE_CHECKING, Any, ClassVar, cast
@@ -19,7 +18,6 @@
 
 if TYPE_CHECKING:
     from collections.abc import Iterable
-    from types import FrameType
 
     import requests
     from backoff.types import Details
@@ -330,15 +328,13 @@ def post_process(self, row: dict, context: Context | None = None) -> dict:
     def backoff_handler(self, details: Details) -> None:
         """Handle retriable error by swapping auth token."""
         self.logger.info("Retrying request with different token")
-        # use python introspection to obtain the error object
-        # FIXME: replace this once https://github.com/litl/backoff/issues/158
-        # is fixed
-        exc = cast(
-            "FrameType",
-            cast("FrameType", cast("FrameType", inspect.currentframe()).f_back).f_back,
-        ).f_locals["e"]
+        # backoff now passes the exception directly in `details`, so we no
+        # longer need to rely on frame introspection to retrieve it.
+        # See https://github.com/litl/backoff/issues/158.
+        exc = details.get("exception")
         if (
-            exc.response is not None
+            isinstance(exc, RetriableAPIError)
+            and exc.response is not None
             and exc.response.status_code == 403
             and "rate limit exceeded" in str(exc.response.content)
         ):