diff --git a/dependency-check-gradle/build.gradle b/dependency-check-gradle/build.gradle
index 13508a3c4..aaaf3813c 100644
--- a/dependency-check-gradle/build.gradle
+++ b/dependency-check-gradle/build.gradle
@@ -38,6 +38,9 @@ apply plugin: 'maven'
 apply plugin: 'signing'
 apply plugin: "com.gradle.plugin-publish"
 
+sourceCompatibility = 1.6
+targetCompatibility = 1.6
+
 repositories {
     mavenCentral()
 }