diff --git a/Cargo.lock b/Cargo.lock
index 3b5eded0a..26fec8a73 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,8 +179,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bn"
-version = "0.4.3"
-source = "git+https://github.com/paritytech/bn#5df8d83c19f3fb97ae3fdefa5bad5279babe795e"
+version = "0.4.4"
+source = "git+https://github.com/paritytech/bn#b97e95a45f4484a41a515338c4f0e093bf6675e0"
 dependencies = [
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -387,7 +387,7 @@ version = "1.7.0"
 dependencies = [
  "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bloomchain 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "bn 0.4.3 (git+https://github.com/paritytech/bn)",
+ "bn 0.4.4 (git+https://github.com/paritytech/bn)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2642,7 +2642,7 @@ dependencies = [
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
 "checksum blastfig 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "09640e0509d97d5cdff03a9f5daf087a8e04c735c3b113a75139634a19cfc7b2"
 "checksum bloomchain 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3f421095d2a76fc24cd3fb3f912b90df06be7689912b1bdb423caefae59c258d"
-"checksum bn 0.4.3 (git+https://github.com/paritytech/bn)" = "<none>"
+"checksum bn 0.4.4 (git+https://github.com/paritytech/bn)" = "<none>"
 "checksum byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c40977b0ee6b9885c9013cd41d9feffdd22deb3bb4dc3a71d901cc7a77de18c8"
 "checksum bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c129aff112dcc562970abb69e2508b40850dd24c274761bb50fb8a0067ba6c27"
 "checksum bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "46112a0060ae15e3a3f9a445428a53e082b91215b744fa27a1948842f4a64b96"