diff --git a/Cargo.toml b/Cargo.toml
index 7c5318b..48f2a30 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ homepage = "http://parity.io"
 repository = "https://github.com/ethcore/bigint"
 license = "GPL-3.0"
 name = "bigint"
-version = "0.1.2"
+version = "1.0.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"