diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8ee7e5762..f66c04b49 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,7 +4,7 @@ ci:
 
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.8.6
+    rev: v0.9.2
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
diff --git a/pyproject.toml b/pyproject.toml
index 8c0e890d6..1f0cd6320 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ name = "attrs"
 authors = [{ name = "Hynek Schlawack", email = "hs@ox.cx" }]
 license = "MIT"
 license-files = ["LICENSE"]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 description = "Classes Without Boilerplate"
 keywords = ["class", "attribute", "boilerplate"]
 classifiers = [
@@ -226,6 +226,8 @@ ignore = [
   "TD",      # we don't follow other people's todo style
   "TRY301",  # I'm sorry, but this makes not sense for us.
   "UP031",   # format() is slow as molasses; % and f'' FTW.
+  "UP006",   # replace Dict etc by dict etc later.
+  "UP035",   # replace Dict etc by dict etc later.
 ]
 
 [tool.ruff.lint.per-file-ignores]
@@ -242,6 +244,7 @@ ignore = [
   "PLR0124", # pointless comparison in tests aren't pointless
   "PT011",   # broad is fine
   "PT012",   # sometimes we need more than a single stmt
+  "RUF009",  # using results of function calls as defaults is fine
   "RUF012",  # we don't do ClassVar annotations in tests
   "S",       # security concerns don't matter in tests
   "SIM201",  # sometimes we need to check `not ==`
diff --git a/src/attr/_compat.py b/src/attr/_compat.py
index 22fcd7838..130de4303 100644
--- a/src/attr/_compat.py
+++ b/src/attr/_compat.py
@@ -10,7 +10,6 @@
 
 
 PYPY = platform.python_implementation() == "PyPy"
-PY_3_9_PLUS = sys.version_info[:2] >= (3, 9)
 PY_3_10_PLUS = sys.version_info[:2] >= (3, 10)
 PY_3_11_PLUS = sys.version_info[:2] >= (3, 11)
 PY_3_12_PLUS = sys.version_info[:2] >= (3, 12)
diff --git a/src/attr/_funcs.py b/src/attr/_funcs.py
index c39fb8aa5..1ef973fc6 100644
--- a/src/attr/_funcs.py
+++ b/src/attr/_funcs.py
@@ -3,7 +3,7 @@
 
 import copy
 
-from ._compat import PY_3_9_PLUS, get_generic_base
+from ._compat import get_generic_base
 from ._make import _OBJ_SETATTR, NOTHING, fields
 from .exceptions import AttrsAttributeNotFoundError
 
@@ -450,10 +450,11 @@ class yet.
     if getattr(cls, "__attrs_types_resolved__", None) != cls:
         import typing
 
-        kwargs = {"globalns": globalns, "localns": localns}
-
-        if PY_3_9_PLUS:
-            kwargs["include_extras"] = include_extras
+        kwargs = {
+            "globalns": globalns,
+            "localns": localns,
+            "include_extras": include_extras,
+        }
 
         hints = typing.get_type_hints(cls, **kwargs)
         for field in fields(cls) if attribs is None else attribs:
diff --git a/src/attr/_make.py b/src/attr/_make.py
index f00fec48c..152bb4f95 100644
--- a/src/attr/_make.py
+++ b/src/attr/_make.py
@@ -2285,7 +2285,7 @@ def _attrs_to_init_script(
     NL = "\n    "
     return (
         f"""def {method_name}(self, {args}):
-    {NL.join(lines) if lines else 'pass'}
+    {NL.join(lines) if lines else "pass"}
 """,
         names_for_globals,
         annotations,
diff --git a/tests/test_annotations.py b/tests/test_annotations.py
index 6fbae3ca6..abb1bd1a5 100644
--- a/tests/test_annotations.py
+++ b/tests/test_annotations.py
@@ -11,6 +11,7 @@
 import pytest
 
 import attr
+import attrs
 
 from attr._compat import PY_3_14_PLUS
 from attr._make import _is_class_var
@@ -107,7 +108,7 @@ def test_auto_attribs(self, slots):
         class C:
             cls_var: typing.ClassVar[int] = 23
             a: int
-            x: typing.List[int] = attr.Factory(list)
+            x: typing.List[int] = attrs.Factory(list)
             y: int = 2
             z: int = attr.ib(default=3)
             foo: typing.Any = None
@@ -407,7 +408,7 @@ class C:
             cls_var2: "ClassVar[int]" = 23
             cls_var3: "t.ClassVar[int]" = 23
             a: "int"
-            x: "typing.List[int]" = attr.Factory(list)
+            x: "typing.List[int]" = attrs.Factory(list)
             y: "int" = 2
             z: "int" = attr.ib(default=3)
             foo: "typing.Any" = None
diff --git a/tests/test_validators.py b/tests/test_validators.py
index e238a78c1..45e7050d3 100644
--- a/tests/test_validators.py
+++ b/tests/test_validators.py
@@ -1074,8 +1074,7 @@ def test_repr(self):
         v = not_(wrapped)
 
         assert (
-            f"<not_ validator wrapping {wrapped!r}, "
-            f"capturing {v.exc_types!r}>"
+            f"<not_ validator wrapping {wrapped!r}, capturing {v.exc_types!r}>"
         ) == repr(v)
 
     def test_success_because_fails(self):
diff --git a/tests/typing_example.py b/tests/typing_example.py
index b8d414ba8..465760601 100644
--- a/tests/typing_example.py
+++ b/tests/typing_example.py
@@ -269,7 +269,7 @@ class Validated2:
 
 @attrs.define
 class Validated3:
-    num: int = attr.field(validator=attr.validators.ge(0))
+    num: int = attrs.field(validator=attr.validators.ge(0))
 
 
 with attr.validators.disabled():
diff --git a/tox.ini b/tox.ini
index b01466737..fa057dfb6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 min_version = 4
 env_list =
     pre-commit,
-    py3{8,9,10,11,12,13}-tests,
+    py3{9,10,11,12,13}-tests,
     py3{10,11,12,13}-mypy,
     pypy3-tests,
     pyright,
@@ -31,7 +31,7 @@ commands =
 dependency_groups = tests
 commands = pytest tests/test_functional.py
 
-[testenv:py3{8,10,13}-tests]
+[testenv:py3{9,10,13}-tests]
 dependency_groups = cov
 # Python 3.6+ has a number of compile-time warnings on invalid string escapes.
 # PYTHONWARNINGS=d makes them visible during the tox run.
@@ -46,7 +46,7 @@ commands =
 # Keep base_python in-sync with .python-version-default
 base_python = py313
 # Keep depends in-sync with testenv above that has the cov dependency group.
-depends = py3{8,10,13}-tests
+depends = py3{9,10,13}-tests
 skip_install = true
 dependency_groups = cov
 commands =