diff --git a/pyproject.toml b/pyproject.toml
index 71ae2a2..f34b258 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,3 +74,9 @@ default-groups = ["dev", "docs"]
 [build-system]
 requires = ["maturin>=1.7,<2.0"]
 build-backend = "maturin"
+
+[tool.maturin]
+strip = true
+opt-level = "z"   # TODO compare with "s"
+lto = true
+codegen-units = 1