diff --git a/README.md b/README.md
index 1a1ce16..2ec5d06 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 [![Context7](https://img.shields.io/badge/Context7-docs-blue)](https://context7.com/modern-python/that-depends)
 [![llms.txt](https://img.shields.io/badge/llms.txt-green)](https://that-depends.modern-python.org/llms.txt)
 
-Dependency injection framework for Python.
+Simple, typed dependency injection framework for Python.
 
 It is production-ready and gives you the following:
 - Simple async-first DI framework with IOC-container.
diff --git a/pyproject.toml b/pyproject.toml
index 0cee046..53926cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,14 +1,16 @@
 [project]
 name = "that-depends"
-description = "Simple Dependency Injection framework"
+description = "Simple, typed dependency-injection framework for Python"
 authors = [
     { name = "Artur Shiriev", email = "me@shiriev.ru" },
 ]
 readme = "README.md"
 requires-python = ">=3.10,<4"
 license = "MIT"
-keywords = ["di", "dependency injector", "ioc-container", "mocks", "python"]
+keywords = ["dependency-injection", "di", "ioc-container", "scopes", "mocks", "python"]
 classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -28,8 +30,11 @@ faststream = [
 ]
 
 [project.urls]
-repository = "https://github.com/modern-python/that-depends"
-docs = "https://that-depends.modern-python.org"
+Homepage = "https://that-depends.modern-python.org"
+Documentation = "https://that-depends.modern-python.org"
+Repository = "https://github.com/modern-python/that-depends"
+Issues = "https://github.com/modern-python/that-depends/issues"
+Changelog = "https://github.com/modern-python/that-depends/releases"
 
 [dependency-groups]
 dev = [
diff --git a/tests/providers/test_local_singleton.py b/tests/providers/test_local_singleton.py
index 4f92dda..af9384d 100644
--- a/tests/providers/test_local_singleton.py
+++ b/tests/providers/test_local_singleton.py
@@ -1,4 +1,5 @@
 import asyncio
+import itertools
 import random
 import threading
 import time
@@ -71,11 +72,25 @@ async def test_thread_local_singleton_reuses_instance_created_while_waiting_on_l
 
 def test_thread_local_singleton_different_threads() -> None:
     """Test that different threads receive different instances."""
-    provider = ThreadLocalSingleton(_factory)
-    results = []
+    # Each factory call returns a distinct value from an atomic counter, so the test is
+    # deterministic: the ThreadLocalSingleton calls the factory once per thread, yielding
+    # one unique value per thread. A random factory could collide and a thread-id factory
+    # is unreliable because thread ids are recycled once a thread exits; itertools.count
+    # avoids both. The sleep keeps the threads overlapping so this exercises real concurrency.
+    counter = itertools.count()
+
+    def factory() -> int:
+        time.sleep(0.01)
+        return next(counter)
+
+    provider = ThreadLocalSingleton(factory)
+    results: list[int] = []
+    results_lock = threading.Lock()
 
     def resolve_in_thread() -> None:
-        results.append(provider.resolve_sync())
+        value = provider.resolve_sync()
+        with results_lock:
+            results.append(value)
 
     number_of_threads = 10
 
@@ -86,8 +101,8 @@ def resolve_in_thread() -> None:
     for thread in threads:
         thread.join()
 
-    assert len(results) == number_of_threads, "Test failed: Expected results from two threads."
-    assert results[0] != results[1], "Thread-local failed: Instances across threads should differ."
+    assert len(results) == number_of_threads, "Expected one result per thread."
+    assert len(set(results)) == number_of_threads, "Thread-local failed: each thread should get its own instance."
 
 
 def test_thread_local_singleton_override() -> None:
diff --git a/that_depends/providers/base.py b/that_depends/providers/base.py
index 7adc02d..31f5982 100644
--- a/that_depends/providers/base.py
+++ b/that_depends/providers/base.py
@@ -158,7 +158,7 @@ def _deregister(self, candidates: typing.Iterable[typing.Any]) -> None:
             self._invalidate_scope_init_order()
 
     def _invalidate_scope_init_order(self) -> None:
-        stack = [self]
+        stack: list[AbstractProvider[typing.Any]] = [self]
         visited: set[AbstractProvider[typing.Any]] = set()
 
         while stack: