diff --git a/README.md b/README.md
index 67fafb8..390124b 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # OSS Notice File Generator
 
-![release](https://img.shields.io/badge/release-2.2.0-blue.svg)
+![release](https://img.shields.io/badge/release-2.2.1-blue.svg)
 [![Build Status](https://travis-ci.org/silentsoft/oss-notice-file-generator.svg?branch=master)](https://travis-ci.org/silentsoft/oss-notice-file-generator)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=silentsoft_oss-notice-file-generator&metric=alert_status)](https://sonarcloud.io/dashboard?id=silentsoft_oss-notice-file-generator)
 [![HitCount](http://hits.dwyl.io/silentsoft/oss-notice-file-generator.svg)](http://hits.dwyl.io/silentsoft/oss-notice-file-generator)
@@ -13,7 +13,7 @@
 	<dependency>
 		<groupId>org.silentsoft.oss</groupId>
 		<artifactId>notice-file-generator</artifactId>
-		<version>2.2.0</version>
+		<version>2.2.1</version>
 	</dependency>
 </dependencies>
 ```
diff --git a/pom.xml b/pom.xml
index 8f61e5c..5cfb5ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 	
 	<groupId>org.silentsoft.oss</groupId>
 	<artifactId>notice-file-generator</artifactId>
-	<version>2.2.0</version>
+	<version>2.2.1</version>
 	
 	<name>OSS Notice File Generator</name>
 	<description>OSS Notice File Generator is a simple Java library to generate NOTICE.md file for open source software.</description>
@@ -70,6 +70,9 @@
 						<goals>
 							<goal>jar</goal>
 						</goals>
+						<configuration>
+							<source>8</source>
+						</configuration>
 					</execution>
 				</executions>
 			</plugin>