diff --git a/ants/__init__.py b/ants/__init__.py
index c60a176d..f353033d 100644
--- a/ants/__init__.py
+++ b/ants/__init__.py
@@ -1,5 +1,12 @@
 
-__version__ = '0.6.3'
+from importlib.metadata import PackageNotFoundError as _PackageNotFoundError
+from importlib.metadata import version as _version
+
+try:
+    __version__ = _version("antspyx")
+except _PackageNotFoundError:
+    # Documentation builds import the source tree without installing antspyx.
+    __version__ = "unknown"
 
 from .core import *
 from .label import *
diff --git a/pyproject.toml b/pyproject.toml
index 3cebf219..14541f9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ version = "0.6.4"
 description = "A fast medical imaging analysis library in Python with algorithms for registration, segmentation, and more."
 license = { text = "Apache-2.0" }
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 authors = [
     { name = "Brian B. Avants", email = "stnava@gmail.com" }
 ]