diff --git a/samples/voldemort/src/main/resources/META-INF/spring/integration/spring-integration-context.xml b/samples/voldemort/src/main/resources/META-INF/spring/integration/spring-integration-context.xml
index c6b034a..3722b6c 100644
--- a/samples/voldemort/src/main/resources/META-INF/spring/integration/spring-integration-context.xml
+++ b/samples/voldemort/src/main/resources/META-INF/spring/integration/spring-integration-context.xml
@@ -10,7 +10,7 @@
 	<int:channel id="requestChannel"/>
 
 	<!-- See also:
-		https://docs.spring.io/spring-integration/reference/htmlsingle/#gateway-proxy
+		https://docs.spring.io/spring-integration/reference/html/#gateway-proxy
 		https://www.enterpriseintegrationpatterns.com/MessagingGateway.html -->
 	<int:gateway id="gateway"
 		default-request-timeout="5000"
diff --git a/spring-integration-cassandra/build.gradle b/spring-integration-cassandra/build.gradle
index 166abe7..e17551a 100644
--- a/spring-integration-cassandra/build.gradle
+++ b/spring-integration-cassandra/build.gradle
@@ -34,7 +34,7 @@ ext {
     slf4jVersion = '1.7.25'
     reactorVersion = '3.2.5.RELEASE'
     springDataCassandraVersion = '2.1.4.RELEASE'
-    springIntegrationVersion = '5.1.2.RELEASE'
+    springIntegrationVersion = '5.1.4.BUILD-SNAPSHOT'
 
     idPrefix = 'cassandra'
 
diff --git a/spring-integration-hazelcast/build.gradle b/spring-integration-hazelcast/build.gradle
index 3e921a9..e69bb7f 100644
--- a/spring-integration-hazelcast/build.gradle
+++ b/spring-integration-hazelcast/build.gradle
@@ -55,7 +55,7 @@ compileTestJava {
 ext {
 	hazelcastVersion = '3.8.9'
 	slf4jVersion = '1.7.25'
-	springIntegrationVersion = '4.3.16.RELEASE'
+	springIntegrationVersion = '4.3.20.BUILD-SNAPSHOT'
 
 	idPrefix = 'hazelcast'
 
diff --git a/spring-integration-smb/build.gradle b/spring-integration-smb/build.gradle
index 8dd7cf4..8a75f78 100644
--- a/spring-integration-smb/build.gradle
+++ b/spring-integration-smb/build.gradle
@@ -58,7 +58,7 @@ ext {
 
 	jcifsVersion = '1.3.18.3'
 	log4jVersion = '2.11.0'
-	springIntegrationVersion = '5.0.4.RELEASE'
+	springIntegrationVersion = '5.0.13.BUILD-SNAPSHOT'
 
 
 	linkHomepage = 'https://github.com/SpringSource/spring-integration-extensions'
diff --git a/spring-integration-social-twitter/build.gradle b/spring-integration-social-twitter/build.gradle
index 360e2d5..bf29284 100644
--- a/spring-integration-social-twitter/build.gradle
+++ b/spring-integration-social-twitter/build.gradle
@@ -4,7 +4,7 @@ plugins {
 	id 'idea'
 	id 'jacoco'
 	id 'checkstyle'
-	id 'org.sonarqube' version '2.6.2'
+	id 'org.sonarqube' version '2.7'
 }
 
 description = 'Spring Integration Social Twitter Support'
@@ -28,9 +28,9 @@ compileJava {
 
 ext {
 	jackson2Version = '2.9.6'
-	springIntegrationVersion = '5.1.0.RELEASE'
+	springIntegrationVersion = '5.1.4.BUILD-SNAPSHOT'
 	springSocialTwitterVersion = '1.1.2.RELEASE'
-	springVersion = '5.1.2.RELEASE'
+	springVersion = '5.1.6.BUILD-SNAPSHOT'
 
 	idPrefix = 'twitter'
 
@@ -53,12 +53,12 @@ sourceSets {
 }
 
 jacoco {
-	toolVersion = "0.7.9"
+	toolVersion = "0.8.2"
 }
 
 checkstyle {
 	configFile = file("$rootDir/src/checkstyle/checkstyle.xml")
-	toolVersion = "8.11"
+	toolVersion = "8.18"
 }
 
 // enable all compiler warnings; individual projects may customize further
diff --git a/spring-integration-zip/build.gradle b/spring-integration-zip/build.gradle
index 3b0f047..c190ec8 100644
--- a/spring-integration-zip/build.gradle
+++ b/spring-integration-zip/build.gradle
@@ -62,7 +62,7 @@ ext {
 	linkScmDevConnection = 'git@github.com:spring-projects/spring-integration-extensions.git'
 
 	slf4jVersion = "1.7.25"
-	springIntegrationVersion = '4.3.15.RELEASE'
+	springIntegrationVersion = '4.3.20.BUILD-SNAPSHOT'
 	ztZipVersion = '1.13'
 
 	idPrefix = 'zip'