diff --git a/pom.xml b/pom.xml
index b6634e3..3590a92 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
         <onos.app.url>http://opencord.org</onos.app.url>
         <onos.app.readme>Integration with Kafka event bus</onos.app.readme>
         <aaa.api.version>2.1.0</aaa.api.version>
-        <olt.api.version>4.1.1</olt.api.version>
+        <olt.api.version>4.1.3</olt.api.version>
         <dhcpl2relay.api.version>2.1.0</dhcpl2relay.api.version>
         <bng.api.version>1.0.0</bng.api.version>
         <sadis.api.version>5.1.0</sadis.api.version>
diff --git a/src/test/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegrationTest.java b/src/test/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegrationTest.java
index e158828..ce8244c 100644
--- a/src/test/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegrationTest.java
+++ b/src/test/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegrationTest.java
@@ -136,6 +136,11 @@
         }
 
         @Override
+        public ImmutableMap<ConnectPoint, Set<UniTagInformation>> getFailedSubs() {
+            return null;
+        }
+
+        @Override
         public void addListener(AccessDeviceListener listener) {
             accessDeviceListener = listener;
         }