diff --git a/pyproject.toml b/pyproject.toml
index 5bbe9f4..e7e99c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,8 @@ readme = "README.md"
 repository = "https://github.com/unexcellent/quantio"
 
 [tool.poetry.dependencies]
-python = ">=3.8, <3.14"
+python = ">=3.10, <3.14"
+numpy = "^2.1.3"
 
 [tool.poetry.group.dev.dependencies]
 mypy-extensions = "<2.0"
diff --git a/quantio/__init__.py b/quantio/__init__.py
index f73c24a..3775f58 100644
--- a/quantio/__init__.py
+++ b/quantio/__init__.py
@@ -1,6 +1,16 @@
 """The main quantio package."""
 
 from .exceptions import CanNotAddTypesError, CanNotSubtractTypesError
-from .quantities import Length, Time
+from .quantities import Acceleration, Angle, Area, Length, Mass, Time, Velocity
 
-__all__ = ["Length", "Time", "CanNotAddTypesError", "CanNotSubtractTypesError"]
+__all__ = [
+    "Acceleration",
+    "Angle",
+    "Area",
+    "Length",
+    "Mass",
+    "Time",
+    "Velocity",
+    "CanNotAddTypesError",
+    "CanNotSubtractTypesError",
+]