diff --git a/CHANGELOG.md b/CHANGELOG.md
index b25750e..74ccc08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 ## 0.3.0 (18.06.2021)
 
+- BREAKING: MSRV got bumped to 1.53.
+
 - `try_match` and `unwrap_match` macros to get a certain variant from an enum [#11].
 - `return_ok` and `return_some` macros for early return of successful calculation [#11].
 - `Integer` trait that unifies all the built-in integer types under a single interface [#12].
diff --git a/Cargo.toml b/Cargo.toml
index 082fb62..3b22b71 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "stdext"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Igor Aleksanov <popzxc@yandex.ru>"]
 edition = "2018"
 repository = "https://github.com/popzxc/stdext-rs"
diff --git a/README.md b/README.md
index b8a834c..8616b85 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 [![Docs.rs](https://docs.rs/stdext/badge.svg)](https://docs.rs/stdext)
 [![Latest Version](https://img.shields.io/crates/v/stdext.svg)](https://crates.io/crates/stdext)
 [![License](https://img.shields.io/github/license/popzxc/stdext-rs.svg)](https://github.com/popzxc/stdext-rs)
-![Rust 1.44+ required](https://img.shields.io/badge/rust-1.44+-blue.svg?label=Rust)
+![Rust 1.53+ required](https://img.shields.io/badge/rust-1.53+-blue.svg?label=Rust)
 
 Additional features for the Rust standard library.
 
@@ -19,6 +19,10 @@ broad audience, but not yet implemented (or stabilized) in `std`.
 Crate is designed to be lightweight (no external dependencies!) and provide essential
 functionality which possible can get to the `std` some day.
 
+The minimal supported Rust version for release 0.3 is 1.53. However, if you need to use
+this crate with an older version of the compiler, check out release 0.2; there is a good
+chance that it will suit your needs.
+
 ## Highlights
 
 - `Integer` super-trait that is implemented for all the built-in integers