diff --git a/pyproject.toml b/pyproject.toml
index e7bb9aaa9542b..e662c6cd42e2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@
 requires = [
     "setuptools",
     "wheel",
-    "Cython>=0.29.33 and Cython<3.0",
+    "Cython>=0.29.33,<3.0",
 
     # use oldest-supported-numpy which provides the oldest numpy version with
     # wheels on PyPI