diff --git a/README.md b/README.md
index 006d85af..e9202da1 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ IP-NFTs allow their users to tokenize intellectual property. This repo contains
 
 tokenizer implementation 1.2: 0xE8701330F196FeFe415b28dAA767AB076F42557A
 tokenizer implementation 1.1: 0x9C70FA8c87D7e94Fd63eeCCcA657D5c4224a36f3
-iptoken implementation: 0x0d6866f3369e4825CE07F226A424F1c11861AdD1
+iptoken implementation: 0x9E4fc6E6d1A64e3429aB852d3CB31AD7aa06997A
 ipnft implementation 2.4: 0x6B179Dffac5E190c670176606f552cB792847f80
 
 Defender Relayer that signs off minting requests from our side: