diff --git a/uptime-kuma-api.nix b/uptime-kuma-api.nix
index e9e3b33..d3fdc66 100644
--- a/uptime-kuma-api.nix
+++ b/uptime-kuma-api.nix
@@ -30,7 +30,7 @@ buildPythonPackage rec {
     packaging
     python-socketio
     requests
-  ];
+  ] ++ python-socketio.optional-dependencies.client;
 
   pythonImportsCheck = [ "uptime_kuma_api" ];