diff --git a/runtracker/src/main/java/com/runtracker/global/fcm/FirebaseConfig.java b/runtracker/src/main/java/com/runtracker/global/fcm/FirebaseConfig.java
index a03732b..1d2249a 100644
--- a/runtracker/src/main/java/com/runtracker/global/fcm/FirebaseConfig.java
+++ b/runtracker/src/main/java/com/runtracker/global/fcm/FirebaseConfig.java
@@ -29,11 +29,9 @@ public void initialize() {
                     new java.io.ByteArrayInputStream(firebaseJson.getBytes())
                 );
             } else if (serviceAccountKeyPath != null && !serviceAccountKeyPath.isEmpty()) {
-                String resourcePath = serviceAccountKeyPath.startsWith("classpath:")
-                    ? serviceAccountKeyPath.substring(10)
-                    : serviceAccountKeyPath;
+                String firebasePath = "firebase/" + serviceAccountKeyPath;
                 googleCredentials = GoogleCredentials
-                        .fromStream(new ClassPathResource(resourcePath).getInputStream());
+                        .fromStream(new ClassPathResource(firebasePath).getInputStream());
             } else {
                 throw new RuntimeException("Firebase service account key not found. Please set FCM_JSON or FIREBASE_SERVICE_ACCOUNT_KEY");
             }
diff --git a/runtracker/src/main/resources/application.yml b/runtracker/src/main/resources/application.yml
index 68fba4b..258337d 100644
--- a/runtracker/src/main/resources/application.yml
+++ b/runtracker/src/main/resources/application.yml
@@ -67,7 +67,7 @@ app:
     key: ${AUTH_KEY}
 
 firebase:
-  service-account-key: classpath:firebase/${FIREBASE_SERVICE_ACCOUNT_KEY:}
+  service-account-key: ${FIREBASE_SERVICE_ACCOUNT_KEY:}
   url: https://fcm.googleapis.com/v1/projects/${Firebase_ID}/messages:send
   google_api: https://www.googleapis.com/auth/cloud-platform
   project_id: ${Firebase_ID}