diff --git a/jsonlines/jsonlines.py b/jsonlines/jsonlines.py
index 31aa946..e19730f 100644
--- a/jsonlines/jsonlines.py
+++ b/jsonlines/jsonlines.py
@@ -8,7 +8,6 @@
 import io
 import json
 import os
-import sys
 import types
 import typing
 from typing import (
@@ -18,6 +17,7 @@
     Iterable,
     Iterator,
     List,
+    Literal,
     Optional,
     Tuple,
     Type,
@@ -27,11 +27,6 @@
     overload,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal
-else:
-    from typing_extensions import Literal  # pragma: no cover
-
 import attr
 
 orjson: Optional[types.ModuleType]
diff --git a/setup.cfg b/setup.cfg
index 23c8ddc..17dcad0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,10 +23,9 @@ classifiers =
 
 [options]
 packages = jsonlines
-python_requires = >=3.7
+python_requires = >=3.8
 install_requires =
     attrs>=19.2.0
-    typing_extensions; python_version < "3.8"
 
 [options.package_data]
 jsonlines = py.typed