diff --git a/src/flask_jsonrpc/__init__.py b/src/flask_jsonrpc/__init__.py
index 1caecd8d..bb3f0d9f 100644
--- a/src/flask_jsonrpc/__init__.py
+++ b/src/flask_jsonrpc/__init__.py
@@ -26,6 +26,13 @@
 # POSSIBILITY OF SUCH DAMAGE.
 from __future__ import annotations
 
+import typing as t
+
 from .app import JSONRPC  # noqa: F401
 from .views import JSONRPCView  # noqa: F401
 from .blueprints import JSONRPCBlueprint  # noqa: F401
+
+if not hasattr(t, 'Self'):
+    from typing_extensions import Self
+
+    t.Self = Self