diff --git a/_toc.yml b/_toc.yml
index 8ce6968..e21e5f5 100755
--- a/_toc.yml
+++ b/_toc.yml
@@ -38,14 +38,14 @@ 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:
+    - file: notes/part04/workshop04
+      title: Workshop 4
+    - file: notes/part04/assignment04
+    - file: notes/part04/lab4A
+    - file: notes/part04/lab4B
 
 # - caption: Part 5 - Release Engineering
 #   maxdepth: 1