diff --git a/Cargo.toml b/Cargo.toml
index 32c5fe3..3348b41 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 authors = ["the rp-rs team"]
-edition = "2018"
+edition = "2021"
 readme = "README.md"
 name = "rp2040-project-template"
 version = "0.1.0"