diff --git a/src/emulation.rs b/src/emulation.rs
index fe9706f..7347153 100644
--- a/src/emulation.rs
+++ b/src/emulation.rs
@@ -58,12 +58,15 @@ impl Emulation {
                     }
                 }
                 _ = interval.tick() => {
-                    for (addr, last_response) in last_response.iter() {
-                        if last_response.elapsed() > Duration::from_secs(5) {
+                    let _ = last_response.retain(|addr,instant| {
+                        if instant.elapsed() > Duration::from_secs(5) {
                             log::warn!("{addr} is not responding, releasing keys!");
                             emulation_proxy.release_keys(*addr);
+                            false
+                        } else {
+                            true
                         }
-                    }
+                    });
                 }
                 _ = server.cancelled() => break,
             }