diff --git a/Cargo.toml b/Cargo.toml
index 06de22b40..358a8ec25 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "secp256k1"
-version = "0.5.6"
+version = "0.6.0"
 authors = [ "Dawid Ciężarkiewicz <dpc@ucore.info>",
             "Andrew Poelstra <apoelstra@wpsoftware.net>" ]
 license = "CC0-1.0"
@@ -29,7 +29,7 @@ dev = ["clippy"]
 arrayvec = "0.3"
 clippy = {version = "0.0", optional = true}
 rand = "0.3"
-libc = "0.1"
+libc = "0.2"
 rustc-serialize = "0.3"
 serde = "0.6"
 serde_json = "0.6"