diff --git a/pyproject.toml b/pyproject.toml
index 5a92c731d..38aadbea8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=61", "cffi>=1.3.0", "urllib3>2"]
+requires = ["setuptools>=61", "cffi>=1.3.0"]
 build-backend = "setuptools.build_meta"
 
 [project]