diff --git a/Cargo.toml b/Cargo.toml
index df9be67..22c0639 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "gh-stack"
-version = "0.3.0-beta-2"
+version = "0.3.0"
 authors = ["Timothy Andrew <mail@timothyandrew.net>, Luis Ball <luqven@gmail.com>"]
 license = "MIT"
 repository = "https://github.com/luqven/gh-stack"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
 description = "Manage stacked PR workflows on Github"
 keywords = ["github", "code-review", "stacked-pr"]
 categories = ["command-line-utilities"]