diff --git a/Cargo.toml b/Cargo.toml
index 2add36084..64c9331ea 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "solana"
 description = "High Performance Blockchain"
-version = "0.4.0-alpha"
+version = "0.4.0-beta"
 documentation = "https://docs.rs/solana"
 homepage = "http://loomprotocol.com/"
 repository = "https://github.com/solana-labs/solana"