diff --git a/kotlin-rabbit-functions/pom.xml b/kotlin-rabbit-functions/pom.xml
index af7cd42..11eaaaa 100644
--- a/kotlin-rabbit-functions/pom.xml
+++ b/kotlin-rabbit-functions/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.2</version>
+		<version>2.6.1</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
@@ -15,8 +15,8 @@
 	<description>Project to demonstrate Kotlin usage/configuration in spring-cloud-stream</description>
 	<properties>
 		<java.version>1.8</java.version>
-		<kotlin.version>1.4.21</kotlin.version>
-		<spring-cloud.version>2020.0.1</spring-cloud.version>
+		<kotlin.version>1.6.0</kotlin.version>
+		<spring-cloud.version>2021.0.0</spring-cloud.version>
 	</properties>
 
 	<dependencies>
@@ -34,13 +34,12 @@
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-function-kotlin</artifactId>
-			<version>3.1.3-SNAPSHOT</version>
+			<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
-			<version>3.1.2</version>
+			<artifactId>spring-cloud-function-context</artifactId>
+			<version>3.2.2-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
@@ -71,7 +70,6 @@
 			<plugin>
 				<groupId>org.jetbrains.kotlin</groupId>
 				<artifactId>kotlin-maven-plugin</artifactId>
-				<version>1.4.21</version>
 				<configuration>
 					<args>
 						<arg>-Xjsr305=strict</arg>
diff --git a/kotlin-rabbit-functions/src/main/kotlin/com/example/demokotlin/DemoKotlinConfiguration.kt b/kotlin-rabbit-functions/src/main/kotlin/com/example/demokotlin/DemoKotlinConfiguration.kt
index df39d97..549eb39 100644
--- a/kotlin-rabbit-functions/src/main/kotlin/com/example/demokotlin/DemoKotlinConfiguration.kt
+++ b/kotlin-rabbit-functions/src/main/kotlin/com/example/demokotlin/DemoKotlinConfiguration.kt
@@ -7,14 +7,14 @@ import java.util.function.Function
 import org.springframework.context.annotation.Configuration
 
 @Configuration
-class DemoKotlinConfiguration {
+open class DemoKotlinConfiguration {
 	@Bean
-	fun uppercase(): (String) -> String {
+	open fun uppercase(): (String) -> String {
 		return { it.toUpperCase() }
 	}
 	
 	@Bean
-	fun javaFunction(): Function<String, String> {
+	open fun javaFunction(): Function<String, String> {
 		return Function { x -> x }
 	}
 }