diff --git a/requirements.txt b/requirements.txt
index 678147c..dff6d95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,8 @@
 jupyterlite-core==0.1.3
 jupyterlab~=3.5.1
 
+jupyterlab-open-url-parameter
+
 # Python kernel (optional)
 jupyterlite-pyodide-kernel==0.1.3