diff --git a/build.gradle b/build.gradle
index 0b60c172..39135a3d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -175,7 +175,7 @@ dependencies {
     testImplementation 'org.assertj:assertj-core:3.23.1'
 
     //FireBase
-    implementation 'com.google.firebase:firebase-admin:8.1.0'
+    implementation 'com.google.firebase:firebase-admin:9.3.0'
 
     //actuator
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
diff --git a/src/main/java/ku_rum/backend/domain/alarm/application/FcmService.java b/src/main/java/ku_rum/backend/domain/alarm/application/FcmService.java
index 14a01ed7..90ed548c 100644
--- a/src/main/java/ku_rum/backend/domain/alarm/application/FcmService.java
+++ b/src/main/java/ku_rum/backend/domain/alarm/application/FcmService.java
@@ -50,7 +50,7 @@ public void sendToUsers(FcmDirectDto request) {
                 .build();
 
         try {
-            firebaseMessaging.sendMulticast(message);
+            firebaseMessaging.sendEachForMulticast(message);
         } catch (FirebaseMessagingException e) {
             log.error("FCM error code: {}", e.getErrorCode());
             log.error("FCM message: {}", e.getMessage(), e);