diff --git a/contract.md b/contract.md
index 1019124f3..4284bda1f 100644
--- a/contract.md
+++ b/contract.md
@@ -7,6 +7,7 @@
   - In [[Flancia]] there is no [[privilege]].
   - In [[Flancia]] there is an [[Agora]].
   - In [[Flancia]] we shall one day, if you want, [[meet]].
+- https://twitter.com/flancian/status/1357031412914864131
 - Because I am unskillful, I need your help. I am open to any [[feedback]] anytime.
 
 [//begin]: # "Autogenerated link references for markdown compatibility"