diff --git a/build.gradle b/build.gradle
index b2e7af70c6..7cc210cf45 100644
--- a/build.gradle
+++ b/build.gradle
@@ -33,8 +33,8 @@ configure(allprojects) {
 	group = "org.springframework"
 
 	compileJava {
-		sourceCompatibility=1.5
-		targetCompatibility=1.5
+		sourceCompatibility=1.6
+		targetCompatibility=1.6
 	}
 	compileTestJava {
 		sourceCompatibility=1.7