diff --git a/cannamanage-service/pom.xml b/cannamanage-service/pom.xml
index 575162f..bf9691a 100644
--- a/cannamanage-service/pom.xml
+++ b/cannamanage-service/pom.xml
@@ -62,6 +62,11 @@
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
         </dependency>
+        <!-- Spring WebSocket — SimpMessagingTemplate for NotificationService -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-websocket</artifactId>
+        </dependency>
         <!-- Spring Mail (invite flow) -->
         <dependency>
             <groupId>org.springframework.boot</groupId>