diff --git a/examples/turtlesim_rs/Cargo.toml b/examples/turtlesim_rs/Cargo.toml
index e931bc9f..ba162b09 100644
--- a/examples/turtlesim_rs/Cargo.toml
+++ b/examples/turtlesim_rs/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "turtlesim_rs"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [dependencies]
 eframe = "0.29.1"