diff --git a/development-updates.md b/development-updates.md
index c2b1c899..bcb0a632 100644
--- a/development-updates.md
+++ b/development-updates.md
@@ -26,6 +26,7 @@ Phase one is the very beginning of the cohort. The first few weeks are dedicated
 | [Hamid Bateni](https://github.com/irnb)                      | [Update 0](https://hackmd.io/@irnb/epf-update-0) | [Update 1](https://hackmd.io/@irnb/epf_week1)  |
 | [Hangleang](https://github.com/hangleang)                    | [Update 0](https://hackmd.io/@hangleang/epf-week-0)                                                                                              | [Update 1](https://hackmd.io/@hangleang/epf5-week1)             |        |
 | [Hopinheimer](https://github.com/hopinheimer)                | [Update 0](https://hackmd.io/@np8VhkKRRHanpT1vbtRQ4Q/ByAoT58Q0)                                                                                  |                                                                 |        |
+| [Jihoon Song](https://github.com/jihoonsong)                 |                                                                                                                                                  | [Update 1](https://hackmd.io/@jihoonsong/Sy9J452HC)             |        |
 | [Krishang](https://github.com/kamuik16)                      |                                                                                                                                                  | [Update 1](https://hackmd.io/@kamuik16/SyVy4aKrR)               |        |
 | [Ktl_XV](https://github.com/ktl-xv)                          |                                                                                                                                                  | [Update 1](https://hackmd.io/@Ktl-XV/EPF5-W1)                   |        |
 | [MeldSun](https://github.com/meldsun0)                       | [Update 0](https://hackmd.io/@3juAdBVCRtaXnRB_valWsA/SJb4ugVE0)                                                                                  |                                                                 |        |