diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e0d7057d..7caa9adc 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -20,7 +20,7 @@ repos:
   rev: v3.15.0
   hooks:
     - id: pyupgrade
-      args: ['--py37-plus']
+      args: ['--py38-plus']
 - repo: https://github.com/psf/black
   rev: 23.12.1
   hooks:
diff --git a/src/flask_jsonrpc/types.py b/src/flask_jsonrpc/types.py
index 01d09cd7..c6fa15ba 100644
--- a/src/flask_jsonrpc/types.py
+++ b/src/flask_jsonrpc/types.py
@@ -44,12 +44,6 @@
 except ImportError:  # pragma: no cover
     from typing import Literal  # type: ignore  # pylint: disable=C0412
 
-# Python 3.8+
-try:
-    from typing_extensions import Final
-except ImportError:  # pragma: no cover
-    from typing import Final  # type: ignore  # pylint: disable=C0412
-
 # Python 3.7+
 try:
     from typing import get_args  # pylint: disable=C0412
@@ -120,7 +114,7 @@ def check_type(self, o: t.Any) -> bool:  # pylint: disable=R0911
             if origin_type is Literal:
                 return self.check_args_type(expected_type)
 
-            if origin_type is Final:
+            if origin_type is t.Final:
                 return self.check_args_type(expected_type)
 
             expected_type = origin_type