diff --git a/build.gradle b/build.gradle
index 8db08f4fe7e..ff555017557 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ subprojects {
     apply plugin: "maven-publish"
 
     sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.current()
 
     [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 
diff --git a/common/build.gradle b/common/build.gradle
index efd966897a4..9442baf4c2a 100644
--- a/common/build.gradle
+++ b/common/build.gradle
@@ -4,8 +4,6 @@ plugins {
 
 version '1.0.0'
 
-sourceCompatibility = 1.8
-
 // Dependency versions
 // ---------------------------------------
 def leveldbVersion = "1.8"
diff --git a/crypto/build.gradle b/crypto/build.gradle
index 82814af49e6..699973e0173 100644
--- a/crypto/build.gradle
+++ b/crypto/build.gradle
@@ -4,8 +4,6 @@ plugins {
 
 version '1.0.0'
 
-sourceCompatibility = 1.8
-
 repositories {
     mavenCentral()
 }