diff --git a/tests/test_pytest_cov.py b/tests/test_pytest_cov.py
index 670bfcdd..233058fd 100644
--- a/tests/test_pytest_cov.py
+++ b/tests/test_pytest_cov.py
@@ -16,7 +16,6 @@
 from process_tests import TestProcess as _TestProcess
 from process_tests import dump_on_error
 from process_tests import wait_for_strings
-from six import exec_
 
 import pytest_cov.plugin