diff --git a/python-jupyter-server.spec b/python-jupyter-server.spec
index bfe5cc8..0bfa08a 100644
--- a/python-jupyter-server.spec
+++ b/python-jupyter-server.spec
@@ -32,6 +32,7 @@ BuildRequires:  %{python_module anyio >= 2.0.2}
 BuildRequires:  %{python_module ipython_genutils}
 BuildRequires:  %{python_module jupyter-client >= 6.1.1}
 BuildRequires:  %{python_module jupyter-core >= 4.4.0}
+BuildRequires:  %{python_module nbclient}
 BuildRequires:  %{python_module nbconvert}
 BuildRequires:  %{python_module nbformat}
 BuildRequires:  %{python_module prometheus_client}