diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index db437d81..570f0cad 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -34,7 +34,7 @@ repos:
       - id: black
 
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.178
+    rev: v0.0.185
     hooks:
       - id: ruff
         args: ["--fix"]
diff --git a/pyproject.toml b/pyproject.toml
index b429a9f9..06230a49 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==22.10.0", "mdformat>0.7", "ruff==0.0.178"]
+dependencies = ["black==22.10.0", "mdformat>0.7", "ruff==0.0.185"]
 detached = true
 [tool.hatch.envs.lint.scripts]
 style = [
diff --git a/traitlets/__init__.py b/traitlets/__init__.py
index a3ea9f0d..be890981 100644
--- a/traitlets/__init__.py
+++ b/traitlets/__init__.py
@@ -8,6 +8,16 @@
 from .utils.decorators import signature_has_traits
 from .utils.importstring import import_item
 
+__all__ = [
+    "traitlets",
+    "__version__",
+    "version_info",
+    "Bunch",
+    "signature_has_traits",
+    "import_item",
+    "Sentinel",
+]
+
 
 class Sentinel(traitlets.Sentinel):  # type:ignore[name-defined]
     def __init__(self, *args, **kwargs):
diff --git a/traitlets/config/__init__.py b/traitlets/config/__init__.py
index c5feccc7..699b12b8 100644
--- a/traitlets/config/__init__.py
+++ b/traitlets/config/__init__.py
@@ -4,3 +4,15 @@
 from .application import *
 from .configurable import *
 from .loader import Config
+
+__all__ = [  # noqa
+    "Config",
+    "Application",
+    "ApplicationError",
+    "LevelFormatter",
+    "configurable",
+    "ConfigurableError",
+    "MultipleInstanceError",
+    "LoggingConfigurable",
+    "SingletonConfigurable",
+]
diff --git a/traitlets/tests/test_traitlets.py b/traitlets/tests/test_traitlets.py
index a55c04ab..b69fad44 100644
--- a/traitlets/tests/test_traitlets.py
+++ b/traitlets/tests/test_traitlets.py
@@ -1046,7 +1046,7 @@ def test_str_klass(self):
         class A(HasTraits):
             klass = Type("traitlets.config.Config")
 
-        from traitlets.config import Config  # type:ignore
+        from traitlets.config import Config
 
         a = A()
         a.klass = Config
@@ -1059,7 +1059,7 @@ class A(HasTraits):
             klass = Type()
 
         a = A(klass="traitlets.config.Config")
-        from traitlets.config import Config  # type:ignore
+        from traitlets.config import Config
 
         self.assertEqual(a.klass, Config)