diff --git a/ant.properties b/ant.properties
index 54f6fd670..e5d868bde 100644
--- a/ant.properties
+++ b/ant.properties
@@ -1 +1,3 @@
 java.encoding=UTF-8
+java.source=1.7
+java.target=1.7
diff --git a/build.gradle b/build.gradle
index 2b2fb0754..27404771a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -78,8 +78,8 @@ android {
 	buildToolsVersion toolVersion
 
 	compileOptions {
-		sourceCompatibility = "1.6"
-		targetCompatibility = "1.6"
+		sourceCompatibility JavaVersion.VERSION_1_7
+		targetCompatibility JavaVersion.VERSION_1_7
 	}
 
 	sourceSets {
diff --git a/project.properties b/project.properties
index a9b6cb869..41cb681d3 100644
--- a/project.properties
+++ b/project.properties
@@ -1,8 +1,6 @@
 proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 target=android-19
-compile.source=1.6
-compile.target=1.6
 
 android.library.reference.1=extern/UniversalImageLoader/library
 android.library.reference.2=extern/MemorizingTrustManager