diff --git a/jupyterlab_snippets/handlers.py b/jupyterlab_snippets/handlers.py
index a9b4163..1cac247 100644
--- a/jupyterlab_snippets/handlers.py
+++ b/jupyterlab_snippets/handlers.py
@@ -2,8 +2,8 @@
 
 import tornado
 
-from notebook.base.handlers import APIHandler
-from notebook.utils import url_path_join
+from jupyter_server.base.handlers import APIHandler
+from jupyter_server.utils import url_path_join
 
 
 class ListSnippets(APIHandler):