diff --git a/backend/pium/src/main/java/com/official/pium/notification/fcm/application/FcmMessageSender.java b/backend/pium/src/main/java/com/official/pium/notification/fcm/application/FcmMessageSender.java
index 1557ab2d..b3bcc038 100644
--- a/backend/pium/src/main/java/com/official/pium/notification/fcm/application/FcmMessageSender.java
+++ b/backend/pium/src/main/java/com/official/pium/notification/fcm/application/FcmMessageSender.java
@@ -10,6 +10,7 @@
 import com.google.firebase.messaging.MessagingErrorCode;
 import com.google.firebase.messaging.Notification;
 import com.official.pium.notification.application.MessageSendManager;
+import com.official.pium.notification.fcm.config.CustomThreadManager;
 import jakarta.annotation.PostConstruct;
 import java.io.FileNotFoundException;
 import java.io.IOException;
diff --git a/backend/pium/src/main/java/com/official/pium/notification/fcm/application/CustomThreadManager.java b/backend/pium/src/main/java/com/official/pium/notification/fcm/config/CustomThreadManager.java
similarity index 92%
rename from backend/pium/src/main/java/com/official/pium/notification/fcm/application/CustomThreadManager.java
rename to backend/pium/src/main/java/com/official/pium/notification/fcm/config/CustomThreadManager.java
index c1304338..4d3a161b 100644
--- a/backend/pium/src/main/java/com/official/pium/notification/fcm/application/CustomThreadManager.java
+++ b/backend/pium/src/main/java/com/official/pium/notification/fcm/config/CustomThreadManager.java
@@ -1,4 +1,4 @@
-package com.official.pium.notification.fcm.application;
+package com.official.pium.notification.fcm.config;
 
 import com.google.firebase.FirebaseApp;
 import com.google.firebase.ThreadManager;