diff --git a/backend-rust/step1-json-api/src/api.rs b/backend-rust/step1-json-api/src/api.rs
index 9724962..e9f1c6c 100644
--- a/backend-rust/step1-json-api/src/api.rs
+++ b/backend-rust/step1-json-api/src/api.rs
@@ -1,4 +1,4 @@
-use crate::errors::{err_msg, AppResult, Error};
+use crate::errors::{err_msg, AppResult};
 use serde::{Deserialize, Serialize};
 use serde_json::value::RawValue;