diff --git a/pyproject.toml b/pyproject.toml
index 60f1245..72ec354 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ version = "2.0a1"
 authors = [
   { name="CASM developers", email="casm-developers@lists.engr.ucsb.edu" },
 ]
-description = "Constants, definitions, and generically useful tools used by CASM"
+description = "CASM cluster expansion basis set generation"
 readme = "README.md"
 requires-python = ">=3.9"
 license = {text = "LGPL2.1+"}