diff --git a/setup.cfg b/setup.cfg
index dc8d3768ef..d4b340352e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -12,7 +12,7 @@ split_before_expression_after_opening_paren = true
 [isort]
 line_length = 79
 multi_line_output = 0
-extra_standard_library = pkg_resources,setuptools,logging,os,warnings,abc
+extra_standard_library = setuptools,logging,os,warnings,abc
 known_first_party = mmcv
 known_third_party = addict,cv2,matplotlib,numpy,onnx,packaging,pytest,pytorch_sphinx_theme,scipy,sphinx,torch,torchvision,yaml,yapf
 no_lines_before = STDLIB,LOCALFOLDER
diff --git a/setup.py b/setup.py
index c3e1f500d6..bd1ba1edff 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,8 @@
 import os
 import platform
 import re
-from pkg_resources import DistributionNotFound, get_distribution, parse_version
+from importlib.metadata import version, PackageNotFoundError
+from packaging.version import parse as parse_version
 from setuptools import find_packages, setup
 
 EXT_TYPE = ''
@@ -33,8 +34,8 @@ def choose_requirement(primary, secondary):
     return secondary."""
     try:
         name = re.split(r'[!<>=]', primary)[0]
-        get_distribution(name)
-    except DistributionNotFound:
+        version(name)
+    except PackageNotFoundError:
         return secondary
 
     return str(primary)