diff --git a/Cargo.toml b/Cargo.toml
index 185f36fa..a551dd10 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ license = "GPL-3.0"
 name = "nat_traversal"
 readme = "README.md"
 repository = "https://github.com/maidsafe/nat_traversal"
-version = "0.0.3"
+version = "0.0.4"
 
 [dependencies]
 cbor = "~0.3.16"
@@ -19,7 +19,7 @@ ip = "~1.1.0"
 libc = "~0.2.6"
 log = "~0.3.4"
 maidsafe_utilities = "~0.1.5"
-net2 = "~0.2.20"
+net2 = "~0.2.22"
 quick-error = "0.2.2"
 rand = "~0.3.12"
 rustc-serialize = "~0.3.16"