diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3c20cf9b..10a0e97e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,7 +19,7 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.23.2
+    rev: 0.23.3
     hooks:
       - id: check-github-workflows
 
@@ -29,12 +29,12 @@ repos:
       - id: mdformat
 
   - repo: https://github.com/psf/black
-    rev: 23.3.0
+    rev: 23.7.0
     hooks:
       - id: black
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.0.276
+    rev: v0.0.281
     hooks:
       - id: ruff
         args: ["--fix"]
diff --git a/pyproject.toml b/pyproject.toml
index 5d53379f..13c0b7db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ dependencies = ["mypy>=0.990"]
 test = "mypy --install-types --non-interactive {args:.}"
 
 [tool.hatch.envs.lint]
-dependencies = ["black==23.3.0", "mdformat>0.7", "ruff==0.0.276"]
+dependencies = ["black==23.3.0", "mdformat>0.7", "ruff==0.0.281"]
 detached = true
 [tool.hatch.envs.lint.scripts]
 style = [
diff --git a/traitlets/config/configurable.py b/traitlets/config/configurable.py
index 570967aa..41f1f8cf 100644
--- a/traitlets/config/configurable.py
+++ b/traitlets/config/configurable.py
@@ -189,9 +189,7 @@ def warn(msg):
                             return warnings.warn(msg, UserWarning, stacklevel=9)
 
                     matches = get_close_matches(name, traits)
-                    msg = "Config option `{option}` not recognized by `{klass}`.".format(
-                        option=name, klass=self.__class__.__name__
-                    )
+                    msg = f"Config option `{name}` not recognized by `{self.__class__.__name__}`."
 
                     if len(matches) == 1:
                         msg += f"  Did you mean `{matches[0]}`?"
diff --git a/traitlets/config/sphinxdoc.py b/traitlets/config/sphinxdoc.py
index 92c2d64d..a69d89f9 100644
--- a/traitlets/config/sphinxdoc.py
+++ b/traitlets/config/sphinxdoc.py
@@ -124,10 +124,10 @@ def reverse_aliases(app):
     # Treat flags which set one trait to True as aliases.
     for flag, (cfg, _) in app.flags.items():
         if len(cfg) == 1:
-            classname = list(cfg)[0]
+            classname = next(iter(cfg))
             cls_cfg = cfg[classname]
             if len(cls_cfg) == 1:
-                traitname = list(cls_cfg)[0]
+                traitname = next(iter(cls_cfg))
                 if cls_cfg[traitname] is True:
                     res[classname + "." + traitname].append(flag)
 
diff --git a/traitlets/traitlets.py b/traitlets/traitlets.py
index 06b4d82d..97ee9bca 100644
--- a/traitlets/traitlets.py
+++ b/traitlets/traitlets.py
@@ -2903,7 +2903,8 @@ def from_string_list(self, s_list):
             item_from_string = self.item_from_string
         else:
             # backward-compat: allow item_from_string to ignore index arg
-            item_from_string = lambda s, index=None: self.item_from_string(s)  # noqa[E371]
+            def item_from_string(s, index=None):
+                return self.item_from_string(s)  # noqa[E371]
 
         return self.klass(
             [item_from_string(s, index=idx) for idx, s in enumerate(s_list)]
@@ -3426,10 +3427,7 @@ def item_from_string(self, s):
 
         if "=" not in s:
             raise TraitError(
-                "'{}' options must have the form 'key=value', got {}".format(
-                    self.__class__.__name__,
-                    repr(s),
-                )
+                f"'{self.__class__.__name__}' options must have the form 'key=value', got {s!r}"
             )
         key, value = s.split("=", 1)
 
@@ -3521,7 +3519,7 @@ def __init__(self, enum_class, default_value=None, **kwargs):
         assert issubclass(enum_class, enum.Enum), "REQUIRE: enum.Enum, but was: %r" % enum_class
         allow_none = kwargs.get("allow_none", False)
         if default_value is None and not allow_none:
-            default_value = list(enum_class.__members__.values())[0]
+            default_value = next(iter(enum_class.__members__.values()))
         super().__init__(default_value=default_value, **kwargs)
         self.enum_class = enum_class
         self.name_prefix = enum_class.__name__ + "."
diff --git a/traitlets/utils/warnings.py b/traitlets/utils/warnings.py
index d2b04fd7..216b23dc 100644
--- a/traitlets/utils/warnings.py
+++ b/traitlets/utils/warnings.py
@@ -17,9 +17,7 @@ def deprecated_method(method, cls, method_name, msg):
     Uses warn_explicit to bind warning to method definition instead of triggering code,
     which isn't relevant.
     """
-    warn_msg = "{classname}.{method_name} is deprecated in traitlets 4.1: {msg}".format(
-        classname=cls.__name__, method_name=method_name, msg=msg
-    )
+    warn_msg = f"{cls.__name__}.{method_name} is deprecated in traitlets 4.1: {msg}"
 
     for parent in inspect.getmro(cls):
         if method_name in parent.__dict__: