diff --git a/content/about.md b/content/about.md
index f8799a9..9e59d11 100644
--- a/content/about.md
+++ b/content/about.md
@@ -48,7 +48,7 @@ differential privacy to optimization, machine learning, and mechanism design.
 - **Topics in Security and Privacy Technologies (CS 839)**: [F18](https://pages.cs.wisc.edu/~justhsu/teaching/f18/cs839/)
 
 ## Service ##
-- **2021** ESOP, PLMW@POPL, CSF
+- **2021** ESOP, PLMW@POPL, CSF, AAAI
 - **2020** AAAI, CSF, LAFI, WoLLIC, PLMW@POPL, OOPSLA (ERC)
 - **2019** POPL, PLMW@POPL, POST, CSF, DARS (co-chair)
 - **2018** LICS, WWW