diff --git a/build.gradle b/build.gradle
index 01a93070f4..bc60432732 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
 	dependencies {
 		classpath("org.springframework.build.gradle:propdeps-plugin:0.0.7")
 		classpath("org.asciidoctor:asciidoctor-gradle-plugin:1.5.3")
-		classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.6")
+		classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.1.0-beta-17")
 		classpath("io.spring.gradle:docbook-reference-plugin:0.3.1")
 		classpath("io.spring.gradle:dependency-management-plugin:1.0.0.BUILD-SNAPSHOT")
 	}
@@ -71,7 +71,7 @@ configure(allprojects) { project ->
 	ext.junitVersion           = "4.12"
 	ext.junitJupiterVersion    = '5.0.0-M3'
 	ext.junitPlatformVersion   = '1.0.0-M3'
-	ext.kotlinVersion          = "1.0.6" // Also change kotlin-gradle-plugin version when upgrading
+	ext.kotlinVersion          = "1.1.0-beta-17" // Also change kotlin-gradle-plugin version when upgrading
 	ext.log4jVersion           = '2.7'
 	ext.nettyVersion           = "4.1.7.Final"
 	ext.okhttpVersion          = "2.7.5"
@@ -112,10 +112,6 @@ configure(allprojects) { project ->
 	// Kotlin compiler does not support JDK 9 yet, see https://youtrack.jetbrains.com/issue/KT-14988
 	if (!JavaVersion.current().java9Compatible) {
 		apply plugin: "kotlin"
-		//compileKotlin {
-		//	kotlinOptions.apiVersion = 1.0
-		//	kotlinOptions.languageVersion = 1.0
-		//}
 	}
 
 	configurations {
@@ -871,6 +867,15 @@ project("spring-web-reactive") {
 		testRuntime("org.webjars:underscorejs:1.8.3")
 		testRuntime("org.jruby:jruby:9.1.7.0")
 		testRuntime("org.python:jython-standalone:2.5.3")
+		// Ideally, kotlin-script-runtime should be enough for JSR-223, but that's not
+		// the case yet, so we depend on kotlin-script-util and exclude these
+		// dependencies only used for artifact retrieval. Point raised to Kotlin team.
+		testRuntime("org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}")
+		testRuntime("org.jetbrains.kotlin:kotlin-script-util:${kotlinVersion}") {
+			exclude group: "com.jcabi", module: "jcabi-aether"
+			exclude group: "org.apache.maven", module: "maven-core"
+			exclude group: "org.sonatype.aether", module: "aether-api"
+		}
 	}
 
 	if (JavaVersion.current().java9Compatible) {
@@ -978,12 +983,12 @@ project("spring-webmvc") {
 		// Ideally, kotlin-script-runtime should be enough for JSR-223, but that's not
 		// the case yet, so we depend on kotlin-script-util and exclude these
 		// dependencies only used for artifact retrieval. Point raised to Kotlin team.
-		//testRuntime("org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}")
-		//testRuntime("org.jetbrains.kotlin:kotlin-script-util:${kotlinVersion}") {
-		//	exclude group: "com.jcabi", module: "jcabi-aether"
-		//	exclude group: "org.apache.maven", module: "maven-core"
-		//	exclude group: "org.sonatype.aether", module: "aether-api"
-		//}
+		testRuntime("org.jetbrains.kotlin:kotlin-compiler:${kotlinVersion}")
+		testRuntime("org.jetbrains.kotlin:kotlin-script-util:${kotlinVersion}") {
+			exclude group: "com.jcabi", module: "jcabi-aether"
+			exclude group: "org.apache.maven", module: "maven-core"
+			exclude group: "org.sonatype.aether", module: "aether-api"
+		}
 		testRuntime("org.webjars:underscorejs:1.8.3")
 		testRuntime("org.glassfish:javax.el:3.0.1-b08")
 		testRuntime("com.sun.xml.bind:jaxb-core:${jaxbVersion}")
diff --git a/spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java b/spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
index 999de640dc..936e8cb826 100644
--- a/spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
+++ b/spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
@@ -21,7 +21,6 @@ import java.util.Map;
 
 import static org.junit.Assert.assertEquals;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
@@ -41,7 +40,6 @@ import org.springframework.web.server.session.WebSessionManager;
  *
  * @author Sebastien Deleuze
  */
-@Ignore // Temporary disabled since Kotlin 1.1-M04 generates bytecode not Kotlin 1.0 compliant, will be enable as soon as Kotlin 1.1-M05 is available
 public class KotlinScriptTemplateTests {
 
 	private StaticApplicationContext context;
diff --git a/spring-web-reactive/src/test/resources/META-INF/services/javax.script.ScriptEngineFactory b/spring-web-reactive/src/test/resources/META-INF/services/javax.script.ScriptEngineFactory
new file mode 100644
index 0000000000..fa84d5e499
--- /dev/null
+++ b/spring-web-reactive/src/test/resources/META-INF/services/javax.script.ScriptEngineFactory
@@ -0,0 +1 @@
+org.jetbrains.kotlin.script.jsr223.KotlinJsr223JvmLocalScriptEngineFactory
diff --git a/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java b/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
index 595290a5f3..362b78b31d 100644
--- a/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
+++ b/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
@@ -22,7 +22,6 @@ import javax.servlet.ServletContext;
 
 import static org.junit.Assert.assertEquals;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import static org.mockito.Mockito.mock;
 
@@ -39,7 +38,6 @@ import org.springframework.web.context.WebApplicationContext;
  *
  * @author Sebastien Deleuze
  */
-@Ignore // Temporary disabled since Kotlin 1.1-M04 generates bytecode not Kotlin 1.0 compliant, will be enable as soon as Kotlin 1.1-M05 is available
 public class KotlinScriptTemplateTests {
 
 	private WebApplicationContext webAppContext;