diff --git a/python-mailman.spec b/python-mailman.spec
index 147b1ed..fe8410f 100644
--- a/python-mailman.spec
+++ b/python-mailman.spec
@@ -135,7 +135,6 @@ Mailman is a mailing list manager from the GNU project.
 
 %prep
 %autosetup -p1 -n mailman-%{version}
-sed -i 's:,<1.4::' setup.py
 
 # https://gitlab.com/mailman/mailman/-/issues/704
 cp %{SOURCE100} src/mailman/testing/