diff --git a/pyproject.toml b/pyproject.toml
index 8fdb9dac7..de184102d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ documentation = "https://basilisp.readthedocs.io/"
 classifiers = [
     # Trove classifiers
     # Full list: https://pypi.python.org/pypi?%3Aaction=list_classifiers
-    "Development Status :: 3 - Beta",
+    "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: Eclipse Public License 1.0 (EPL-1.0)",
     "Programming Language :: Python",