diff --git a/Cargo.toml b/Cargo.toml
index 0511d94..db0b2cc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT"
 keywords = ["tree-sitter", "incremental", "parsing", "objc"]
 categories = ["parsing", "text-editors"]
 repository = "https://github.com/jiyee/tree-sitter-objc"
-edition = "2022"
+edition = "2021"
 
 build = "bindings/rust/build.rs"
 include = [