diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9a9e08a9..efeb0e81 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -71,7 +71,7 @@ jobs:
         toolchain: [stable]
         include:
           - os: ubuntu-latest
-            toolchain: "1.79.0"
+            toolchain: "1.80.0"
           - os: ubuntu-latest
             toolchain: beta
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4a8af6b..ec751dd7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+-   Bump MSRV to 1.80 (#457)
 
 -   Rename `Application` → `Runner`
 
diff --git a/Cargo.toml b/Cargo.toml
index 608da5a3..8ee8eef3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ keywords = ["gui"]
 categories = ["gui"]
 repository = "https://github.com/kas-gui/kas"
 exclude = ["/examples"]
-rust-version = "1.79.0"
+rust-version = "1.80.0"
 
 [package.metadata.docs.rs]
 features = ["stable"]
diff --git a/README.md b/README.md
index e7c9328e..e086c760 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ KAS GUI
 [![Crates.io](https://img.shields.io/crates/v/kas.svg)](https://crates.io/crates/kas)
 [![kas-text](https://img.shields.io/badge/GitHub-kas--text-blueviolet)](https://github.com/kas-gui/kas-text/)
 [![Docs](https://docs.rs/kas/badge.svg)](https://docs.rs/kas)
-![Minimum rustc version](https://img.shields.io/badge/rustc-1.79+-lightgray.svg)
+![Minimum rustc version](https://img.shields.io/badge/rustc-1.80+-lightgray.svg)
 
 KAS is a stateful, pure-Rust GUI toolkit supporting: