diff --git a/package.json b/package.json
index dd8d072..aaf86bd 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "tree-lists": "^0.1.7",
     "tree-media": "^0.3.0",
     "tree-nav": "^0.4.0",
-    "tree-normalize": "^4.0.0",
+    "tree-normalize": "^5.0.0",
     "tree-pack": "^0.3.0",
     "tree-page": "^0.2.2",
     "tree-ratio": "^0.2.1",