diff --git a/requirements/posix.txt b/requirements/posix.txt
index 0c22fa57..88986ee1 100644
--- a/requirements/posix.txt
+++ b/requirements/posix.txt
@@ -5,3 +5,4 @@ jupyter_client>=7.4.9,<9
 pyzmq>=24.0.0
 wurlitzer>=1.0.3
 pyxdg>=0.26
+setuptools<71.0;python_version<"3.9"
diff --git a/requirements/windows.txt b/requirements/windows.txt
index 9d6370b6..e17f9217 100644
--- a/requirements/windows.txt
+++ b/requirements/windows.txt
@@ -3,3 +3,4 @@ ipykernel>=6.29.3,<7
 ipython>=8.12.2,<9
 jupyter_client>=7.4.9,<9
 pyzmq>=24.0.0
+setuptools<71.0;python_version<"3.9"