diff --git a/_toc.yml b/_toc.yml
index b91c732..10807e3 100755
--- a/_toc.yml
+++ b/_toc.yml
@@ -66,7 +66,7 @@ parts:
   - file: notes/project/progress02
   - file: notes/project/progress03
   - file: notes/project/progress04
-  # - file: notes/project/progress05
+  - file: notes/project/progress05
 
 - caption: Course Feedback
   chapters: