diff --git a/book.json b/book.json
index 613c50dd8..860ca26c8 100644
--- a/book.json
+++ b/book.json
@@ -5,8 +5,6 @@
     "plugins" : [
       "anchors",
       "edit-link",
-      "etoc",
-      "numbered-headings",
       "toolbar"
     ],
     "pluginsConfig": {