diff --git a/src/_pytest/main.py b/src/_pytest/main.py
index 639bf26c1..a5d847515 100644
--- a/src/_pytest/main.py
+++ b/src/_pytest/main.py
@@ -5,6 +5,7 @@ import dataclasses
 import fnmatch
 import functools
 import importlib
+import importlib.util
 import os
 from pathlib import Path
 import sys