Index: pydantic-1.9.1/tests/test_utils.py
===================================================================
--- pydantic-1.9.1.orig/tests/test_utils.py
+++ pydantic-1.9.1/tests/test_utils.py
@@ -8,7 +8,7 @@ from copy import copy, deepcopy
 from typing import Callable, Dict, List, NewType, Tuple, TypeVar, Union
 
 import pytest
-from pkg_resources import safe_version
+from packaging.version import Version
 from typing_extensions import Annotated, Literal
 
 from pydantic import VERSION, BaseModel, ConstrainedList, conlist
@@ -379,7 +379,7 @@ def test_version_info():
 
 
 def test_standard_version():
-    assert safe_version(VERSION) == VERSION
+    assert str(Version(VERSION)) == VERSION
 
 
 def test_class_attribute():