diff --git a/build.gradle b/build.gradle
index 475e867e22..8e88af6e6a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -124,8 +124,8 @@ subprojects { subproject ->
 		mysqlVersion = '5.1.34'
 		pahoMqttClientVersion = '1.0.2'
 		postgresVersion = '9.1-901-1.jdbc4'
-		reactorNettyVersion = '0.6.0.RELEASE'
-		reactorVersion = '3.0.4.RELEASE'
+		reactorNettyVersion = '0.6.2.RELEASE'
+		reactorVersion = '3.0.5.RELEASE'
 		romeToolsVersion = '1.7.0'
 		servletApiVersion = '3.1.0'
 		slf4jVersion = "1.7.21"
@@ -135,7 +135,7 @@ subprojects { subproject ->
 		springDataMongoVersion = '2.0.0.BUILD-SNAPSHOT'
 		springDataRedisVersion = '2.0.0.BUILD-SNAPSHOT'
 		springGemfireVersion = '2.0.0.BUILD-SNAPSHOT'
-		springSecurityVersion = '4.2.2.BUILD-SNAPSHOT'
+		springSecurityVersion = '5.0.0.BUILD-SNAPSHOT'
 		springSocialTwitterVersion = '2.0.0.M1'
 		springRetryVersion = '1.2.0.RELEASE'
 		springVersion = project.hasProperty('springVersion') ? project.springVersion : '5.0.0.BUILD-SNAPSHOT'
diff --git a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/ConfigurableMongoDbMessageStore.java b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/ConfigurableMongoDbMessageStore.java
index 7aadd3224f..c98c8bd4d3 100644
--- a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/ConfigurableMongoDbMessageStore.java
+++ b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/ConfigurableMongoDbMessageStore.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2016 the original author or authors.
+ * Copyright 2013-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -233,7 +233,7 @@ public class ConfigurableMongoDbMessageStore extends AbstractConfigurableMongoDb
 	public Message<?> pollMessageFromGroup(final Object groupId) {
 		Assert.notNull(groupId, "'groupId' must not be null");
 
-		Sort sort = new Sort(MessageDocumentFields.LAST_MODIFIED_TIME, MessageDocumentFields.SEQUENCE);
+		Sort sort = Sort.by(MessageDocumentFields.LAST_MODIFIED_TIME, MessageDocumentFields.SEQUENCE);
 		Query query = groupIdQuery(groupId).with(sort);
 		MessageDocument document = mongoTemplate.findAndRemove(query, MessageDocument.class, collectionName);
 		Message<?> message = null;
@@ -376,7 +376,7 @@ public class ConfigurableMongoDbMessageStore extends AbstractConfigurableMongoDb
 	}
 
 	private static Query groupOrderQuery(Object groupId) {
-		Sort sort = new Sort(Sort.Direction.DESC, MessageDocumentFields.LAST_MODIFIED_TIME,
+		Sort sort = Sort.by(Sort.Direction.DESC, MessageDocumentFields.LAST_MODIFIED_TIME,
 				MessageDocumentFields.SEQUENCE);
 		return groupIdQuery(groupId).with(sort);
 	}
diff --git a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbChannelMessageStore.java b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbChannelMessageStore.java
index 7f157bf9b6..aa7acd6c58 100644
--- a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbChannelMessageStore.java
+++ b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbChannelMessageStore.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 the original author or authors.
+ * Copyright 2014-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -126,9 +126,9 @@ public class MongoDbChannelMessageStore extends AbstractConfigurableMongoDbMessa
 	public Message<?> pollMessageFromGroup(Object groupId) {
 		Assert.notNull(groupId, "'groupId' must not be null");
 
-		Sort sort = new Sort(MessageDocumentFields.LAST_MODIFIED_TIME, MessageDocumentFields.SEQUENCE);
+		Sort sort = Sort.by(MessageDocumentFields.LAST_MODIFIED_TIME, MessageDocumentFields.SEQUENCE);
 		if (this.priorityEnabled) {
-			sort = new Sort(Sort.Direction.DESC, MessageDocumentFields.PRIORITY).and(sort);
+			sort = Sort.by(Sort.Direction.DESC, MessageDocumentFields.PRIORITY).and(sort);
 		}
 		Query query = groupIdQuery(groupId).with(sort);
 		MessageDocument document = this.mongoTemplate.findAndRemove(query, MessageDocument.class, this.collectionName);
diff --git a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
index 2b287ff887..25e21a09e3 100644
--- a/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
+++ b/spring-integration-mongodb/src/main/java/org/springframework/integration/mongodb/store/MongoDbMessageStore.java
@@ -353,7 +353,7 @@ public class MongoDbMessageStore extends AbstractMessageGroupStore
 	@Override
 	public Message<?> pollMessageFromGroup(final Object groupId) {
 		Assert.notNull(groupId, "'groupId' must not be null");
-		Query query = whereGroupIdIs(groupId).with(new Sort(GROUP_UPDATE_TIMESTAMP_KEY, SEQUENCE));
+		Query query = whereGroupIdIs(groupId).with(Sort.by(GROUP_UPDATE_TIMESTAMP_KEY, SEQUENCE));
 		MessageWrapper messageWrapper = this.template.findAndRemove(query, MessageWrapper.class, this.collectionName);
 		Message<?> message = null;
 		if (messageWrapper != null) {