diff --git a/Cargo.toml b/Cargo.toml
index bd4fd8a..0060afb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "hashdb"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "trait for hash-keyed databases."
 license = "GPL-3.0"
 
 [dependencies]
 elastic-array = "0.9"
-ethcore-bigint = { version = "0.1.3", path = "../bigint" }
+ethcore-bigint = { version = "0.2.1", path = "../bigint" }