diff --git a/CHANGES.md b/CHANGES.md
index e631f811d..fbda1fc15 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # Changes
 
+## 0.4.0 (2019-05-18)
+
+* Upgrade to actix-web 1.0.0-beta5
+* Removed `protobuf` method for `HttpRequest` (use `ProtoBuf` extractor instead)
+
 ## 0.3.0 (2019-03-07)
 
 * Upgrade to actix-web 0.7.18
diff --git a/Cargo.toml b/Cargo.toml
index f277ef9ba..3dd3ab39a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-protobuf"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["kingxsp <jin.hb.zh@outlook.com>"]
 description = "Protobuf support for actix-web framework."
 readme = "README.md"