diff --git a/alexa-plugin/build.gradle b/alexa-plugin/build.gradle
index 865f077..5518570 100644
--- a/alexa-plugin/build.gradle
+++ b/alexa-plugin/build.gradle
@@ -6,9 +6,9 @@ version rootProject.ext.versions.alexa
 description 'The Alexa plugin for Dialog to write voice applications for Dialogflow and Alexa.'
 
 dependencies {
-    implementation project(":core")
+    implementation project(path: ":core", configuration: 'default')
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    implementation "com.amazon.alexa:ask-sdk-core:2.19.0"
+    implementation "com.amazon.alexa:ask-sdk-core:2.21.0"
 }
 
 dokka {
diff --git a/alexa-spring-plugin/build.gradle b/alexa-spring-plugin/build.gradle
index db17552..a8194f5 100644
--- a/alexa-spring-plugin/build.gradle
+++ b/alexa-spring-plugin/build.gradle
@@ -16,14 +16,14 @@ buildscript {
 }
 
 dependencies {
-    implementation project(':core')
-    implementation project(':alexa-plugin')
-    implementation project(':spring-plugin')
+    implementation project(path: ':core', configuration: 'default')
+    implementation project(path: ':alexa-plugin', configuration: 'default')
+    implementation project(path: ':spring-plugin', configuration: 'default')
 
     implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
     implementation 'org.jetbrains.kotlin:kotlin-reflect'
-    implementation 'org.springframework:spring-context:5.1.8.RELEASE'
-    implementation 'com.amazon.alexa:ask-sdk-core:2.19.0'
+    implementation 'org.springframework:spring-context:5.1.9.RELEASE'
+    implementation 'com.amazon.alexa:ask-sdk-core:2.21.0'
 }
 
 task dokkaJavadoc(type: org.jetbrains.dokka.gradle.DokkaTask) {
diff --git a/build.gradle b/build.gradle
index 392711e..177cc48 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'com.github.ben-manes.versions'
 
 buildscript {
     ext.versions = [:]
-    ext.versions.kotlin = '1.3.41'
+    ext.versions.kotlin = '1.3.50'
     ext.versions.dokka = '0.9.18'
     ext.versions.core = '1.0.4'
     ext.versions.alexa = '1.0.2'
@@ -19,7 +19,7 @@ buildscript {
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"
-        classpath 'com.github.ben-manes:gradle-versions-plugin:0.21.0'
+        classpath 'com.github.ben-manes:gradle-versions-plugin:0.25.0'
         classpath "org.jetbrains.dokka:dokka-gradle-plugin:${versions.dokka}"
         classpath 'com.novoda:bintray-release:SNAPSHOT-13'
     }
diff --git a/core/src/main/kotlin/org/rewedigital/dialog/handler/DialogflowHandler.kt b/core/src/main/kotlin/org/rewedigital/dialog/handler/DialogflowHandler.kt
index 077a955..d1f33fc 100644
--- a/core/src/main/kotlin/org/rewedigital/dialog/handler/DialogflowHandler.kt
+++ b/core/src/main/kotlin/org/rewedigital/dialog/handler/DialogflowHandler.kt
@@ -28,7 +28,7 @@ class DialogflowHandler(private val webhookRequest: WebhookRequest) {
 
     /**
      * The stored user data aka user storage.
-     * @see https://developers.google.com/actions/assistant/save-data#json
+     * @see <a href="https://developers.google.com/actions/assistant/save-data#json">Assistant documentation</a>
      */
     val userData: MutableMap<String, Any?> = run {
         val userData = webhookRequest.originalDetectIntentRequest?.payload?.user?.userStorage
@@ -97,6 +97,14 @@ class DialogflowHandler(private val webhookRequest: WebhookRequest) {
     val accessToken: String?
         get() = webhookRequest.originalDetectIntentRequest?.payload?.user?.accessToken
 
+    /**
+     * True if the userVerificationStatus is VERIFIED
+     * False if the userVerificationStatus is GUEST or null
+     * @see <a href="https://developers.google.com/actions/assistant/save-data#determining_and_handling_user_verification_status">Assistant documentation</a>
+     */
+    val isUserVerified: Boolean
+        get() = webhookRequest.originalDetectIntentRequest?.payload?.user?.userVerificationStatus == "VERIFIED"
+
     /**
      *  Returns an [DialogflowResponseBuilder] which can be used to construct a complete webhook response
      *  containing speech and visual components.
diff --git a/core/src/main/kotlin/org/rewedigital/dialog/model/google/User.kt b/core/src/main/kotlin/org/rewedigital/dialog/model/google/User.kt
index 0d838e1..59a5583 100644
--- a/core/src/main/kotlin/org/rewedigital/dialog/model/google/User.kt
+++ b/core/src/main/kotlin/org/rewedigital/dialog/model/google/User.kt
@@ -9,7 +9,8 @@ data class User(
     val permissions: List<Permissions>?,
     val locale: String?,
     val lastSeen: String?,
-    var userStorage: String?
+    var userStorage: String?,
+    val userVerificationStatus: String?
 ) {
     data class Profile(
         val displayName: String?,
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ba125a3..ef829ac 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
diff --git a/konversation-plugin/build.gradle b/konversation-plugin/build.gradle
index 9588c72..b39c891 100644
--- a/konversation-plugin/build.gradle
+++ b/konversation-plugin/build.gradle
@@ -6,10 +6,10 @@ version rootProject.ext.versions.konversation_plugin
 description 'This is the Konversation plugin for Dialog to write voice applications fast.'
 
 dependencies {
-    implementation project(":core")
+    implementation project(path: ":core", configuration: 'default')
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    compile 'org.rewedigital.voice:konversation:1.0-rc1'
+    compile 'org.rewedigital.voice:konversation:1.0.1'
 }
 
 task dokkaJavadoc(type: org.jetbrains.dokka.gradle.DokkaTask) {
diff --git a/spring-plugin/build.gradle b/spring-plugin/build.gradle
index f9266e4..7fe18f4 100644
--- a/spring-plugin/build.gradle
+++ b/spring-plugin/build.gradle
@@ -16,11 +16,11 @@ version rootProject.ext.versions.spring_plugin
 description 'This is the Spring plugin from Dialog to write voice applications fast.'
 
 dependencies {
-    implementation project(':core')
+    implementation project(path: ':core', configuration: 'default')
 
     implementation 'org.jetbrains.kotlin:kotlin-reflect'
     implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
-    implementation 'org.springframework:spring-context:5.1.8.RELEASE'
+    implementation 'org.springframework:spring-context:5.1.9.RELEASE'
 }
 
 dokka {
diff --git a/spring-sample/build.gradle b/spring-sample/build.gradle
index 95f7145..4bc0df0 100644
--- a/spring-sample/build.gradle
+++ b/spring-sample/build.gradle
@@ -3,7 +3,7 @@ version '1.0.0-SNAPSHOT'
 
 buildscript {
     ext {
-        springBootVersion = '2.1.6.RELEASE'
+        springBootVersion = '2.1.8.RELEASE'
     }
     repositories {
         jcenter()
@@ -35,15 +35,15 @@ compileTestKotlin {
 }
 
 dependencies {
-    def askSdkVersion = '2.19.0'
+    def askSdkVersion = '2.21.0'
 
-    implementation project(':core')
-    implementation project(':ssml-builder')
-    implementation project(':ssml-plugin')
-    implementation project(':spring-plugin')
-    implementation project(':konversation-plugin')
-    implementation project(':alexa-plugin')
-    implementation project(':alexa-spring-plugin')
+    implementation project(path: ':core', configuration: 'default')
+    implementation project(path: ':ssml-builder', configuration: 'default')
+    implementation project(path: ':ssml-plugin', configuration: 'default')
+    implementation project(path: ':spring-plugin', configuration: 'default')
+    implementation project(path: ':konversation-plugin', configuration: 'default')
+    implementation project(path: ':alexa-plugin', configuration: 'default')
+    implementation project(path: ':alexa-spring-plugin', configuration: 'default')
 
     implementation('org.springframework.boot:spring-boot-starter-web')
     implementation('com.fasterxml.jackson.module:jackson-module-kotlin')
diff --git a/ssml-plugin/build.gradle b/ssml-plugin/build.gradle
index dad1188..64216ed 100644
--- a/ssml-plugin/build.gradle
+++ b/ssml-plugin/build.gradle
@@ -9,8 +9,8 @@ apply from: '../docu.gradle'
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
-    implementation project(':core')
-    implementation project(':ssml-builder')
+    implementation project(path: ':core', configuration: 'default')
+    implementation project(path: ':ssml-builder', configuration: 'default')
 }
 
 dokka {