diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
index 1b53c2a..18baccb 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
@@ -16,13 +16,13 @@
 
 package org.onosproject.kafkaintegration.kafka;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.NodeId;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.kafkaintegration.api.EventConversionService;
 import org.onosproject.kafkaintegration.api.EventSubscriptionService;
@@ -53,25 +53,25 @@
 public class EventListener {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventSubscriptionService eventSubscriptionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventConversionService eventConversionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaEventStorageService kafkaStoreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     private final DeviceListener deviceListener = new InternalDeviceListener();