diff --git a/Cargo.toml b/Cargo.toml
index 659ab61..347cdc5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "daisy"
 version = "0.0.1"
-edition = "2023"
+edition = "2021"
 
 [profile.release]
 opt-level = 3