diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 3d877f9..537e6eb 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -29,7 +29,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7
         with:
-          python-version: "3.10"
+          python-version: "3.11"
       - name: Install dependencies
         run: |
           pip install -U pip
diff --git a/netdiff/parsers/base.py b/netdiff/parsers/base.py
index 033306f..512ca27 100644
--- a/netdiff/parsers/base.py
+++ b/netdiff/parsers/base.py
@@ -1,4 +1,5 @@
 import json
+from urllib import parse as urlparse
 
 import networkx
 import requests
@@ -7,11 +8,6 @@
 from ..exceptions import ConversionException, TopologyRetrievalError
 from ..utils import _netjson_networkgraph, diff
 
-try:
-    import urlparse
-except ImportError:  # pragma: no cover
-    from urllib import parse as urlparse  # pragma: no cover
-
 
 class BaseParser(object):
     """
diff --git a/netdiff/parsers/cnml.py b/netdiff/parsers/cnml.py
index 52d81f4..657419f 100644
--- a/netdiff/parsers/cnml.py
+++ b/netdiff/parsers/cnml.py
@@ -1,15 +1,11 @@
 import os
+from urllib import parse as urlparse
 
 import libcnml
 
 from ..exceptions import ParserError
 from .base import BaseParser
 
-try:
-    import urlparse
-except ImportError:
-    from urllib import parse as urlparse
-
 
 class CnmlParser(BaseParser):
     """CNML 0.1 parser"""
diff --git a/runtests.py b/runtests.py
index 696a716..ef5d562 100755
--- a/runtests.py
+++ b/runtests.py
@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 try:
     import nose2
diff --git a/tests/test_base.py b/tests/test_base.py
index 19176d4..f3afce6 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -1,5 +1,6 @@
 import os
 import unittest
+from unittest import mock
 
 import responses
 from requests.exceptions import ConnectionError
@@ -11,11 +12,6 @@
 from netdiff.parsers.base import BaseParser
 from netdiff.utils import _netjson_networkgraph
 
-try:
-    from unittest import mock
-except ImportError:
-    import mock
-
 
 class TestBaseParser(unittest.TestCase):
     """BaseParser tests"""