diff --git a/src/envers/__init__.py b/src/envers/__init__.py
index c67a812..0c2213b 100644
--- a/src/envers/__init__.py
+++ b/src/envers/__init__.py
@@ -1,6 +1,8 @@
 """Envers."""
 # mypy: disable-error-code="attr-defined"
 
+from __future__ import annotations
+
 from importlib import metadata as importlib_metadata
 
 
diff --git a/src/envers/__main__.py b/src/envers/__main__.py
index 9274761..b5f4a6b 100644
--- a/src/envers/__main__.py
+++ b/src/envers/__main__.py
@@ -1,5 +1,7 @@
 """The definition of the action for `python -m` command."""
 
+from __future__ import annotations
+
 from envers.cli import app
 
 if __name__ == "__main__":
diff --git a/tests/test_core.py b/tests/test_core.py
index 3f11e2c..d3b0bd1 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -1,5 +1,7 @@
 """Tests for envers package."""
 
+from __future__ import annotations
+
 import copy
 import os
 import tempfile