diff --git a/development-updates.md b/development-updates.md
index 6f6796f..b1e4471 100644
--- a/development-updates.md
+++ b/development-updates.md
@@ -151,7 +151,7 @@ The actual project development is the main part of the program. Post your regula
 | [Hangleang](https://github.com/hangleang)                    | [Update 6](https://hackmd.io/@hangleang/epf5-week6)             |                                                                 | [Update 7&8](https://hackmd.io/@hangleang/epf5-week7n8)         | [Update 9](https://hackmd.io/@hangleang/epf5-week9)             | [Update 10](https://hackmd.io/@hangleang/epf5-week10)             | [Update 11](https://hackmd.io/@hangleang/epf5-week11)              | [Update 12](https://hackmd.io/@hangleang/epf5-week12)             | [Update 13](https://hackmd.io/@hangleang/epf5-week13)             |         |         |         |         |         |         |         |           |
 | [Hopinheimer](https://github.com/hopinheimer)                |                                                                 | [Update 7](https://hackmd.io/@hopin232/S1VgE2j_A)               | [Update 8](https://hackmd.io/@hopin232/BJrO3ITFA)               |                                                                 |                                                                   | [Week 11](https://hackmd.io/@hopin232/Skm863wjA)                   |                                                                   |         |         |         |         |         |         |         |         |           |
 | [Ifeoluwa Oderinde](https://github.com/owanikin)             |                                                                 |                                                                 |                                                                 |                                                                 |                                                                   | [Update 11](https://hackmd.io/@ZpBFaS-NSO-5Xkdm4jwolg/BkjyzCKiC)   |                                                                   |         |         |         |         |         |         |         |         |           |
-| [Jihoon Song](https://github.com/jihoonsong)                 | [Update 6](https://hackmd.io/@jihoonsong/SJMKLaoOA)             | [Update 7](https://hackmd.io/@jihoonsong/HypZY0EKA)             | [Update 8](https://hackmd.io/@jihoonsong/rkag8fRYC)             | [Update 9](https://hackmd.io/@jihoonsong/SkAFlxD5R)             | [Update 10 & 11](https://hackmd.io/@jihoonsong/SkXyL5YoR)         |                                                                    |                                                                   |         |         |         |         |         |         |         |         |           |
+| [Jihoon Song](https://github.com/jihoonsong)                 | [Update 6](https://hackmd.io/@jihoonsong/SJMKLaoOA)             | [Update 7](https://hackmd.io/@jihoonsong/HypZY0EKA)             | [Update 8](https://hackmd.io/@jihoonsong/rkag8fRYC)             | [Update 9](https://hackmd.io/@jihoonsong/SkAFlxD5R)             | [Update 10 & 11](https://hackmd.io/@jihoonsong/SkXyL5YoR)         |                                                                    | [Update 12 & 13](https://hackmd.io/@jihoonsong/BkQdAbm2A)                                                                  |         |         |         |         |         |         |         |         |           |
 | [jsvisa](https://github.com/jsvisa)                          | [Update 6](https://hackmd.io/@jsvisa/epf5-week6)                | [Update 7](https://hackmd.io/@jsvisa/epf5-week7)                | [Update 8](https://hackmd.io/@jsvisa/epf5-week8)                | [Update 9](https://hackmd.io/@jsvisa/epf5-week9)                | [Update 10](https://hackmd.io/@jsvisa/epf5-week10)                | [Update 11](https://hackmd.io/@jsvisa/epf5-week11)                 |                                                                   |         |         |         |         |         |         |         |         |           |
 | [kira](https://github.com/shyam-patel-kira)                  | [Update 6](https://hackmd.io/@kira50/epf-week-6)                | [Update 7](https://hackmd.io/@kira50/epf-week-7)                |                                                                 |                                                                 |                                                                   |                                                                    |                                                                   |         |         |         |         |         |         |         |         |           |
 | [Krishang](https://github.com/kamuik16)                      |                                                                 |                                                                 |                                                                 |                                                                 |                                                                   |                                                                    |                                                                   |         |         |         |         |         |         |         |         |           |