Index: promise-2.3.0/promise/promise.py
===================================================================
--- promise-2.3.0.orig/promise/promise.py
+++ promise-2.3.0/promise/promise.py
@@ -5,7 +5,6 @@ from threading import RLock
 from types import TracebackType
 from weakref import WeakKeyDictionary
 
-from six import reraise  # type: ignore
 from .async_ import Async
 from .compat import (
     Future,
@@ -223,7 +222,7 @@ class Promise(Generic[T]):
         elif self._state == STATE_REJECTED:
             if _raise:
                 raise_val = self._fulfillment_handler0
-                reraise(type(raise_val), raise_val, self._traceback)
+                raise raise_val.with_traceback(self._traceback)
             return self._fulfillment_handler0
 
     def _fulfill(self, value):
Index: promise-2.3.0/setup.py
===================================================================
--- promise-2.3.0.orig/setup.py
+++ promise-2.3.0/setup.py
@@ -58,7 +58,6 @@ setup(
     extras_require={"test": tests_require},
     install_requires=[
         "typing>=3.6.4; python_version < '3.5'",
-        "six"
     ],
     tests_require=tests_require,
 )