diff --git a/pyproject.toml b/pyproject.toml
index 7b7e9e1..b8940b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["maturin>=1.0.0"]
+requires = ["maturin>=1.5,<2.0"]
 build-backend = "maturin"
 
 [project]