diff --git a/pallas-network/src/miniprotocols/README.md b/pallas-network/src/miniprotocols/README.md
index ff92593..2fc6cb9 100644
--- a/pallas-network/src/miniprotocols/README.md
+++ b/pallas-network/src/miniprotocols/README.md
@@ -1,6 +1,6 @@
 # Pallas Mini-protocols
 
-This crate provides an implementation of the different Ouroboros mini-protocols as defined in the [The Shelley Networking Protocol](https://hydra.iohk.io/build/1070091/download/1/network.pdf#chapter.3) specs.
+This crate provides an implementation of the different Ouroboros mini-protocols as defined in the [The Shelley Networking Protocol](https://input-output-hk.github.io/ouroboros-network/pdfs/network-spec/network-spec.pdf#chapter.3) specs.
 
 ## Architectural Decisions