diff --git a/program/README.md b/program/README.md
index 81167bfd..77d1c5ca 100644
--- a/program/README.md
+++ b/program/README.md
@@ -1,3 +1,11 @@
+> ⚠️ DEPRECATED
+> 
+> This crate has been deprecated and is no longer actively maintained.
+> 
+> Please use [spl-token-interface](https://crates.io/crates/spl-token-interface) for
+> state and instruction types, and [p-token](https://github.com/solana-program/token/tree/main/pinocchio/program)
+> for the program implementation.
+
 # Token program
 
 A token program on the Solana blockchain, usable for fungible and non-fungible tokens.
diff --git a/program/src/lib.rs b/program/src/lib.rs
index 234e0b71..6dd3a9c5 100644
--- a/program/src/lib.rs
+++ b/program/src/lib.rs
@@ -1,7 +1,19 @@
+#![deprecated(
+    since = "9.0.1",
+    note = "Please use `spl-token-interface` for state and instruction types, and p-token for the program implementation"
+)]
 #![allow(clippy::arithmetic_side_effects)]
 #![deny(missing_docs)]
 
 //! An ERC20-like Token program for the Solana blockchain
+//!
+//! `⚠️ DEPRECATED`
+//!
+//! This crate has been deprecated and is no longer actively maintained.
+//!
+//! Please use [spl-token-interface](https://crates.io/crates/spl-token-interface) for
+//! state and instruction types, and [p-token](https://github.com/solana-program/token/tree/main/pinocchio/program)
+//! for the program implementation.
 
 pub mod error;
 pub mod instruction;