diff --git a/Cargo.toml b/Cargo.toml
index fbb7fea9..c8656f05 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name          = "socket2"
-version       = "0.5.8"
+version       = "0.6.0"
+publish       = false # In development.
 authors       = [
   "Alex Crichton <alex@alexcrichton.com>",
   "Thomas de Zeeuw <thomasdezeeuw@gmail.com>"