diff --git a/Cargo.toml b/Cargo.toml
index e0945ae..bf2a5fc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sonic-channel"
-version = "0.3.2"
+version = "0.4.0"
 authors = ["Dmitriy Pleshevskiy <dmitriy@ideascup.me>"]
 description = "Rust client for sonic search backend"
 categories = ["api-bindings"]
diff --git a/README.md b/README.md
index 6c33288..ab5b4ba 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ We recommend you start with the [documentation].
 
 ## Installation
 
-Add `sonic-channel = { version = "0.3" }` as a dependency in `Cargo.toml`.
+Add `sonic-channel = { version = "0.4" }` as a dependency in `Cargo.toml`.
 
 `Cargo.toml` example:
 
@@ -18,7 +18,7 @@ version = "0.1.0"
 authors = ["Me <user@rust-lang.org>"]
 
 [dependencies]
-sonic-channel = { version = "0.3" }
+sonic-channel = { version = "0.4" }
 ```