diff --git a/build.gradle b/build.gradle
index 0c53dcc56d4..433115795ab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,4 +16,6 @@ allprojects {
     }
 
     version = "1.0.0-SNAPSHOT"
+    sourceCompatibility = 1.7
+    targetCompatibility = 1.7
 }