diff --git a/build.gradle b/build.gradle
index 84f06952..67a5669e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,8 +23,8 @@ allprojects {
     group = 'com.stubbornjava.StubbornJava'
     version = '0.0.0-SNAPSHOT'
     
-    sourceCompatibility = 1.8
-    targetCompatibility = 1.8
+    sourceCompatibility = 11
+    targetCompatibility = 11
 
     sourceSets {
         main {