diff --git a/protocol/overview/protocol.mdx b/protocol/overview/protocol.mdx
index 2f6a145..83676f6 100644
--- a/protocol/overview/protocol.mdx
+++ b/protocol/overview/protocol.mdx
@@ -9,7 +9,7 @@ import LinkPreview from "../../src/components/LinkPreview";
 # Protocol Overview
 
 Hifi is a fixed-rate, fixed-term lending protocol based on the [The Yield
-Protocol](https://research.paradigm.xyz/Yield.pdf) paper. The protocol is implemented in a system
+Protocol](https://yield.is/YieldSpace.pdf) paper. The protocol is implemented in a system
 of Ethereum smart contracts.
 
 ![Hifi Diagram](/img/overview/diagram.png)