diff --git a/certbot-ci/certbot_integration_tests/utils/misc.py b/certbot-ci/certbot_integration_tests/utils/misc.py
index 799b079fe..e6b9f0c88 100644
--- a/certbot-ci/certbot_integration_tests/utils/misc.py
+++ b/certbot-ci/certbot_integration_tests/utils/misc.py
@@ -4,10 +4,12 @@ or outside during setup/teardown of the integration tests environment.
 """
 import contextlib
 import errno
+import http.server as SimpleHTTPServer
 import multiprocessing
 import os
 import re
 import shutil
+import socketserver
 import stat
 import sys
 import tempfile
@@ -23,8 +25,6 @@ from cryptography.x509 import load_pem_x509_certificate
 from OpenSSL import crypto
 import pkg_resources
 import requests
-from six.moves import SimpleHTTPServer
-from six.moves import socketserver
 
 from certbot_integration_tests.utils.constants import \
      PEBBLE_ALTERNATE_ROOTS, PEBBLE_MANAGEMENT_URL
diff --git a/certbot-ci/certbot_integration_tests/utils/pebble_ocsp_server.py b/certbot-ci/certbot_integration_tests/utils/pebble_ocsp_server.py
index b86e1cbc9..4db72998f 100755
--- a/certbot-ci/certbot_integration_tests/utils/pebble_ocsp_server.py
+++ b/certbot-ci/certbot_integration_tests/utils/pebble_ocsp_server.py
@@ -4,6 +4,7 @@ This runnable module interfaces itself with the Pebble management interface in o
 to serve a mock OCSP responder during integration tests against Pebble.
 """
 import datetime
+import http.server as BaseHTTPServer
 import re
 
 from cryptography import x509
@@ -13,7 +14,6 @@ from cryptography.hazmat.primitives import serialization
 from cryptography.x509 import ocsp
 from dateutil import parser
 import requests
-from six.moves import BaseHTTPServer
 
 from certbot_integration_tests.utils.constants import MOCK_OCSP_SERVER_PORT
 from certbot_integration_tests.utils.constants import PEBBLE_MANAGEMENT_URL
diff --git a/certbot-ci/certbot_integration_tests/utils/proxy.py b/certbot-ci/certbot_integration_tests/utils/proxy.py
index 225f98e6e..7c46e640d 100644
--- a/certbot-ci/certbot_integration_tests/utils/proxy.py
+++ b/certbot-ci/certbot_integration_tests/utils/proxy.py
@@ -1,12 +1,12 @@
 #!/usr/bin/env python
 # pylint: disable=missing-module-docstring
 
+import http.server as BaseHTTPServer
 import json
 import re
 import sys
 
 import requests
-from six.moves import BaseHTTPServer
 
 from certbot_integration_tests.utils.misc import GracefulTCPServer