diff --git a/readme.md b/readme.md
index c6e3bf6..feb8594 100644
--- a/readme.md
+++ b/readme.md
@@ -150,6 +150,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
   - [Multis](https://multis.co) ([white paper](https://multis.co/white-paper.html)) - Interface for multisig contracts positioned as "cryptobank for companies"
   - [Settle](https://settle.finance) - Web interface that combines chat with different crypto tools (including portfolio tracking and integration with DeFi protocols) and an "app store" for developers
   - [Zerion](https://zerion.io) ([source code](https://github.com/zeriontech)) - Interface to decentralized finance protocols positioned as "trustless banking"
+  - [Lock](https://lock.finance) ([source code](https://github.com/lockprotocol)) - Safely lock, HODL and distribute Ethereum assets in smart contracts.
 
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