diff --git a/hypothesis-python/src/hypothesis/extra/codemods.py b/hypothesis-python/src/hypothesis/extra/codemods.py
index b5dcae72bb..b5ddfc0116 100644
--- a/hypothesis-python/src/hypothesis/extra/codemods.py
+++ b/hypothesis-python/src/hypothesis/extra/codemods.py
@@ -126,7 +126,7 @@ def leave_Arg(self, original_node, updated_node):
         return updated_node
 
 
-@functools.lru_cache()
+@functools.lru_cache
 def get_fn(import_path):
     mod, fn = import_path.rsplit(".", 1)
     return getattr(importlib.import_module(mod), fn)
diff --git a/hypothesis-python/src/hypothesis/extra/django/_fields.py b/hypothesis-python/src/hypothesis/extra/django/_fields.py
index 2118cd406a..1e4a46f551 100644
--- a/hypothesis-python/src/hypothesis/extra/django/_fields.py
+++ b/hypothesis-python/src/hypothesis/extra/django/_fields.py
@@ -53,7 +53,7 @@ def inner(field):
     return inner
 
 
-@lru_cache()
+@lru_cache
 def timezones():
     # From Django 4.0, the default is to use zoneinfo instead of pytz.
     assert getattr(django.conf.settings, "USE_TZ", False)
diff --git a/hypothesis-python/src/hypothesis/internal/conjecture/utils.py b/hypothesis-python/src/hypothesis/internal/conjecture/utils.py
index 84589edc4e..a951879899 100644
--- a/hypothesis-python/src/hypothesis/internal/conjecture/utils.py
+++ b/hypothesis-python/src/hypothesis/internal/conjecture/utils.py
@@ -471,7 +471,7 @@ def reject(self, why: Optional[str] = None) -> None:
 SMALLEST_POSITIVE_FLOAT: float = next_up(0.0) or sys.float_info.min
 
 
-@lru_cache()
+@lru_cache
 def _calc_p_continue(desired_avg: float, max_size: int) -> float:
     """Return the p_continue which will generate the desired average size."""
     assert desired_avg <= max_size, (desired_avg, max_size)
diff --git a/hypothesis-python/src/hypothesis/internal/entropy.py b/hypothesis-python/src/hypothesis/internal/entropy.py
index fb0ca2b27e..f3e91d36a7 100644
--- a/hypothesis-python/src/hypothesis/internal/entropy.py
+++ b/hypothesis-python/src/hypothesis/internal/entropy.py
@@ -22,10 +22,7 @@
 from hypothesis.internal.compat import GRAALPY, PYPY
 
 if TYPE_CHECKING:
-    if sys.version_info >= (3, 8):
-        from typing import Protocol
-    else:
-        from typing_extensions import Protocol
+    from typing import Protocol
 
     # we can't use this at runtime until from_type supports
     # protocols -- breaks ghostwriter tests
diff --git a/hypothesis-python/src/hypothesis/stateful.py b/hypothesis-python/src/hypothesis/stateful.py
index d169bb8308..f20a6b33db 100644
--- a/hypothesis-python/src/hypothesis/stateful.py
+++ b/hypothesis-python/src/hypothesis/stateful.py
@@ -387,7 +387,7 @@ def teardown(self):
     TestCase = TestCaseProperty()
 
     @classmethod
-    @lru_cache()
+    @lru_cache
     def _to_test_case(cls):
         class StateMachineTestCase(TestCase):
             settings = Settings(deadline=None, suppress_health_check=list(HealthCheck))
diff --git a/hypothesis-python/src/hypothesis/strategies/_internal/core.py b/hypothesis-python/src/hypothesis/strategies/_internal/core.py
index ba85416f66..7206b4f112 100644
--- a/hypothesis-python/src/hypothesis/strategies/_internal/core.py
+++ b/hypothesis-python/src/hypothesis/strategies/_internal/core.py
@@ -137,7 +137,7 @@
 if sys.version_info >= (3, 8):
     from typing import Protocol
 elif TYPE_CHECKING:
-    from typing_extensions import Protocol
+    from typing import Protocol
 else:  # pragma: no cover
     Protocol = object
 
diff --git a/hypothesis-python/tests/cover/test_asyncio.py b/hypothesis-python/tests/cover/test_asyncio.py
index 294063b74c..1fd92e4488 100644
--- a/hypothesis-python/tests/cover/test_asyncio.py
+++ b/hypothesis-python/tests/cover/test_asyncio.py
@@ -9,7 +9,6 @@
 # obtain one at https://mozilla.org/MPL/2.0/.
 
 import asyncio
-import sys
 import warnings
 from unittest import TestCase
 
@@ -18,14 +17,11 @@
 from hypothesis import assume, given, strategies as st
 from hypothesis.internal.compat import PYPY
 
-if sys.version_info < (3, 8):
-    coro_decorator = asyncio.coroutine
-else:
 
-    def coro_decorator(f):
-        with warnings.catch_warnings():
-            warnings.simplefilter(action="ignore", category=DeprecationWarning)
-            return asyncio.coroutine(f)
+def coro_decorator(f):
+    with warnings.catch_warnings():
+        warnings.simplefilter(action="ignore", category=DeprecationWarning)
+        return asyncio.coroutine(f)
 
 
 class TestAsyncio(TestCase):
diff --git a/hypothesis-python/tests/typing_extensions/test_backported_types.py b/hypothesis-python/tests/typing_extensions/test_backported_types.py
index a6f3512de0..138d89f00f 100644
--- a/hypothesis-python/tests/typing_extensions/test_backported_types.py
+++ b/hypothesis-python/tests/typing_extensions/test_backported_types.py
@@ -10,13 +10,12 @@
 
 import collections
 import sys
-from typing import Callable, DefaultDict, Dict, List, NewType, Type, Union
+from typing import Callable, DefaultDict, Dict, List, Literal, NewType, Type, Union
 
 import pytest
 from typing_extensions import (
     Annotated,
     Concatenate,
-    Literal,
     NotRequired,
     ParamSpec,
     Required,
diff --git a/pyproject.toml b/pyproject.toml
index 426ac6734f..a1d9483d01 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ select = [
 ]
 ignore = ["C408", "E731", "E741", "S101", "UP031"]
 line-length = 125
-target-version = "py37"
+target-version = "py38"
 
 [tool.ruff.per-file-ignores]
 "hypothesis-python/src/hypothesis/internal/compat.py" = ["F401"]