diff --git a/README.md b/README.md
index 87bf6bd..6ad31a9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # Cashu Development Kit
 
+> [!WARNING]  
+> Archived! Check <https://github.com/cashubtc/cdk>.
+
 ## Project structure
 
 The project is split up into several crates in the `crates/` directory: