diff --git a/pyproject.toml b/pyproject.toml
index f069de95..7a17ec55 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling>=1.5"]
+requires = ["hatchling>=1.21.1"]
 build-backend = "hatchling.build"
 
 [project]