diff --git a/build.gradle b/build.gradle
index a111335022..62a97a9d4a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,8 +12,8 @@ allprojects {
 subprojects {
     apply plugin: 'java'
     apply plugin: 'signing'
-    sourceCompatibility = 1.6
-    targetCompatibility = 1.6
+    sourceCompatibility = 1.8
+    targetCompatibility = 1.8
     [ compileJava, compileTestJava, javadoc ]*.options*.encoding = 'UTF-8'
     def isSnapshot = true; // version.contains("SNAPSHOT")