diff --git a/CHANGELOG.md b/CHANGELOG.md
index 798022c..e755df7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 * add support for Python 3.13 and 3.14
 * switch to [uv](https://docs.astral.sh/uv/) for development and packaging
 * switch from black and flake8 to [ruff](https://docs.astral.sh/ruff/)
+* fix crash in `states` CLI when printing counties, thanks to [Arpit Jain](https://github.com/arpitjain099)
 * thanks to maintainer [Pedro Camargo](https://github.com/pedrocamargo)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index aaf54d6..70d84a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "us"
-version = "4.0.0.dev0"
+version = "4.0.0"
 description = "US state metadata"
 readme = "README.md"
 urls.Homepage = "https://github.com/unitedstates/python-us/"
diff --git a/uv.lock b/uv.lock
index 7626600..c49bb33 100644
--- a/uv.lock
+++ b/uv.lock
@@ -493,7 +493,7 @@ wheels = [
 
 [[package]]
 name = "us"
-version = "4.0.0.dev0"
+version = "4.0.0"
 source = { editable = "." }
 dependencies = [
     { name = "jellyfish", version = "1.1.3", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.9'" },