diff --git a/docs/digital-money.md b/docs/digital-money.md
index 1d46e630..7d4d1cb0 100644
--- a/docs/digital-money.md
+++ b/docs/digital-money.md
@@ -10,7 +10,6 @@
 - [en.wikipedia.org: Cryptocurrency](https://en.wikipedia.org/wiki/Cryptocurrency)
 - [en.wikipedia.org: Blockchain](https://en.wikipedia.org/wiki/Blockchain)
 - [Tether (USDt)](https://tether.to/)
-- [wikipedia: Tether (cryptocurrency)](https://en.wikipedia.org/wiki/Tether_(cryptocurrency))
 
 ## Tweets