diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67b41f762ed14921d403947e7883c1de2057b2ac..1373a58b0a81e71b7a2f8c91ff8ebb3653670c20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+# 0.5.0 (unreleased)
+
 # 0.4.6 (Janary 8, 2018)
 
 * Implement FromIterator for Bytes/BytesMut (#148).
diff --git a/Cargo.toml b/Cargo.toml
index ce80a6160f5b690975086a9107790e1a770481e3..83b75a7d29323c6afd597c869806a516bf5d2436 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name          = "bytes"
-version       = "0.4.6" # don't forget to update html_root_url
+version       = "0.5.0" # don't forget to update html_root_url
 license       = "MIT/Apache-2.0"
 authors       = ["Carl Lerche <me@carllerche.com>"]
 description   = "Types and traits for working with bytes"
diff --git a/src/lib.rs b/src/lib.rs
index 206ee765e7aa5d7fec4c1b498d0c1d513347dacb..87dc15a0ec7d6e5a3b983172ef6dc13062e2a844 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -69,7 +69,7 @@
 //! and `BufMut` are infallible.
 
 #![deny(warnings, missing_docs, missing_debug_implementations)]
-#![doc(html_root_url = "https://docs.rs/bytes/0.4.6")]
+#![doc(html_root_url = "https://docs.rs/bytes/0.5.0")]
 
 extern crate byteorder;
 extern crate iovec;