diff --git a/pom.xml b/pom.xml
index 64f192c..0116eb7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,7 +48,7 @@
   -->
 
   <properties>
-    <source.level>1.7</source.level>
+    <source.level>1.8</source.level>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <gwt.version>2.8.2</gwt.version>
     <gwt.maven.version>2.8.2</gwt.maven.version>