diff --git a/src/pluggy/_types.py b/src/pluggy/_types.py
index 1e978f8e..41fd914f 100644
--- a/src/pluggy/_types.py
+++ b/src/pluggy/_types.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from typing import Mapping
 from typing import TypedDict
 import warnings