diff --git a/src/replay/components/VesselListManager/VesselListPanel.tsx b/src/replay/components/VesselListManager/VesselListPanel.tsx
index de5381f7..f8418bcd 100644
--- a/src/replay/components/VesselListManager/VesselListPanel.tsx
+++ b/src/replay/components/VesselListManager/VesselListPanel.tsx
@@ -104,7 +104,7 @@ const VesselListPanel = ({
         if (vesselId && sourceState && sourceState !== state) {
           onDrop?.(vesselId, sourceState, state);
         }
-      } catch (error) {
+      } catch {
         // 드롭 데이터 파싱 실패 시 무시 (외부 드래그 소스일 수 있음)
       }
     },
diff --git a/src/replay/services/ReplayWebSocketService.ts b/src/replay/services/ReplayWebSocketService.ts
index 7bd2dd14..3e0d615b 100644
--- a/src/replay/services/ReplayWebSocketService.ts
+++ b/src/replay/services/ReplayWebSocketService.ts
@@ -289,7 +289,7 @@ class ReplayWebSocketService {
 
   private _clearSubscriptions(): void {
     this.subscriptions.forEach((sub) => {
-      try { sub.unsubscribe(); } catch (e) { /* ignore */ }
+      try { sub.unsubscribe(); } catch { /* ignore */ }
     });
     this.subscriptions = [];
   }
@@ -569,7 +569,7 @@ class ReplayWebSocketService {
     this._clearSubscriptions();
 
     if (this.client?.connected) {
-      try { this.client.deactivate(); } catch (e) { /* ignore */ }
+      try { this.client.deactivate(); } catch { /* ignore */ }
     }
 
     this.client = null;
diff --git a/src/workers/signalWorker.ts b/src/workers/signalWorker.ts
index 063513ca..cb8d924e 100644
--- a/src/workers/signalWorker.ts
+++ b/src/workers/signalWorker.ts
@@ -167,7 +167,7 @@ workerSelf.onmessage = (e: MessageEvent<string[]>): void => {
       const row = rawMessages[i].split('|');
       const ship = rowToShipObject(row);
       ships.push(ship);
-    } catch (_err) {
+    } catch {
       // 파싱 에러는 무시하고 계속 진행
     }
   }