diff --git a/problem_06/src/heartbeat.rs b/problem_06/src/heartbeat.rs
index b0e971b..aa1b12f 100644
--- a/problem_06/src/heartbeat.rs
+++ b/problem_06/src/heartbeat.rs
@@ -1,7 +1,9 @@
-use crate::frame::ServerFrames;
 use std::time::Duration;
+
 use tokio::sync::mpsc;
 
+use crate::frame::ServerFrames;
+
 pub(crate) struct Heartbeat {
 	is_running: bool,
 	interval: Duration,