diff --git a/_toc.yml b/_toc.yml
index 5c3c448..8ce6968 100755
--- a/_toc.yml
+++ b/_toc.yml
@@ -38,15 +38,6 @@ parts:
     - file: notes/part03/lab03A
     - file: notes/part03/lab03B
 
-- caption: Part 4 - MongoDB
-  maxdepth: 1
-  chapters:
-    - file: notes/part04/workshop04
-      title: Workshop 4
-    - file: notes/part04/assignment04
-    - file: notes/part04/lab4A
-    - file: notes/part04/lab4B
-
   - caption: Part 4 - MongoDB
     maxdepth: 1
     chapters: