diff --git a/pyproject.toml b/pyproject.toml
index c9cc5e3b9..ca6e25449 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,2 +1,2 @@
 [build-system]
-requires = ["setuptools", "wheel", "pybind11"]
+requires = ["pip", "setuptools", "wheel", "pybind11"]