diff --git a/pyproject.toml b/pyproject.toml
index 5806366e..d38d56d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 build-backend = "mesonpy"
-requires = ["meson-python"]
+requires = ["meson-python", "meson<1.12"]
 
 [project]
 name = "python-gmp"