diff --git a/trame/ui/__init__.py b/trame/ui/__init__.py
index 5284146..8db66d3 100644
--- a/trame/ui/__init__.py
+++ b/trame/ui/__init__.py
@@ -1 +1 @@
-__import__("pkg_resources").declare_namespace(__name__)
+__path__ = __import__("pkgutil").extend_path(__path__, __name__)