diff --git a/python-jupyter-ydoc.spec b/python-jupyter-ydoc.spec
index 7592049..522abda 100644
--- a/python-jupyter-ydoc.spec
+++ b/python-jupyter-ydoc.spec
@@ -45,7 +45,7 @@ BuildRequires:  %{python_module pytest-asyncio}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module websockets >= 10.0}
 BuildRequires:  %{python_module y-py >= 0.5.3 with %python-y-py < 0.6.0}
-BuildRequires:  %{python_module ypy-websocket >= 0.3.1 with %python-ypy-websocket < 0.4}
+BuildRequires:  %{python_module ypy-websocket >= 0.3.1}
 BuildRequires:  nodejs
 # /SECTION
 %python_subpackages