diff --git a/gradle-modules/gradle/build.gradle b/gradle-modules/gradle/build.gradle
index d69a3384a8..d808f4a3cc 100644
--- a/gradle-modules/gradle/build.gradle
+++ b/gradle-modules/gradle/build.gradle
@@ -10,8 +10,6 @@ allprojects {
 
 subprojects {
     version = '1.0'
-    sourceCompatibility = "1.8"
-    targetCompatibility = "1.8"
 }
 
 apply plugin: 'eclipse'
diff --git a/gradle-modules/gradle/greeting-library/build.gradle b/gradle-modules/gradle/greeting-library/build.gradle
index a8fa91963c..16304cd5ed 100644
--- a/gradle-modules/gradle/greeting-library/build.gradle
+++ b/gradle-modules/gradle/greeting-library/build.gradle
@@ -7,3 +7,8 @@ dependencies {
         exclude module : 'groovy-all'
     }
 }
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}