diff --git a/Cargo.toml b/Cargo.toml
index 50db23f..7f24c81 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyth-client"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["Pyth Data Foundation"]
 edition = "2018"
 license = "Apache-2.0"
@@ -10,6 +10,9 @@ description = "pyth price oracle data structures and example usage"
 keywords = [ "pyth", "solana", "oracle" ]
 readme = "README.md"
 
+[badges]
+maintenance = { status = "deprecated" }
+
 [features]
 test-bpf = []
 no-entrypoint = []
diff --git a/README.md b/README.md
index fb1e4fa..faf7bc8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Pyth Client
 
+**This crate has been deprecated. Please use [pyth-sdk-solana](https://github.com/pyth-network/pyth-sdk-rs/tree/main/pyth-sdk-solana) instead. pyth-sdk-solana provides identical functionalities with an easier interface.**
+
 This crate provides utilities for reading price feeds from the [pyth.network](https://pyth.network/) oracle on the Solana network.
 The crate includes a library for on-chain programs and an off-chain example program.
 
diff --git a/src/lib.rs b/src/lib.rs
index 01454a8..7a56f5b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,7 @@
 //! A Rust library for consuming price feeds from the [pyth.network](https://pyth.network/) oracle on the Solana network.
 //!
 //! Please see the [crates.io page](https://crates.io/crates/pyth-client/) for documentation and example usage.
+#![deprecated = "This crate has been deprecated. Please use pyth-sdk-solana instead."]
 
 pub use self::price_conf::PriceConf;
 pub use self::error::PythError;
diff --git a/tests/common.rs b/tests/common.rs
index 6d98755..40e3b85 100644
--- a/tests/common.rs
+++ b/tests/common.rs
@@ -3,7 +3,7 @@ use {
     pyth_client::processor::process_instruction,
     solana_program::instruction::Instruction,
     solana_program_test::*,
-    solana_sdk::{signature::Signer, transaction::Transaction},
+    solana_sdk::{signature::Signer, transaction::Transaction, pubkey::Pubkey},
 };
 
 // Panics if running instruction fails