diff --git a/Cargo.toml b/Cargo.toml
index bd843ea..033c1ab 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "dust-lang"
 description = "Data-Oriented Programming Language"
 version = "0.3.5"
 repository = "https://github.com/tree-sitter/tree-sitter-dust"
-edition = "2018"
+edition = "2021"
 license = "MIT"
 
 [[bin]]