diff --git a/useful-definitions.md b/useful-definitions.md
index f46a0d86e..c2dc85996 100644
--- a/useful-definitions.md
+++ b/useful-definitions.md
@@ -1,5 +1,5 @@
 # Useful Definitions
 
 - A [[list]].
-- https://twitter.com/prerationalist/status/1355562141932281859
+- https://twitter.com/flancian/status/1355562246211039232