diff --git a/build.gradle b/build.gradle
index 426923a..f99d1f1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,8 +9,8 @@
 apply plugin: 'eclipse'
 apply plugin: 'idea'
 
-sourceCompatibility = '1.6'
-targetCompatibility = '1.6'
+sourceCompatibility = '1.8'
+targetCompatibility = '1.8'
 
 compileJava.options.encoding = 'UTF-8'
 if(compile_incremental == "true")
diff --git a/src/main/resources/mixin.umbukkitimpl.json b/src/main/resources/mixin.umbukkitimpl.json
index aea99b6..ae37565 100644
--- a/src/main/resources/mixin.umbukkitimpl.json
+++ b/src/main/resources/mixin.umbukkitimpl.json
@@ -1,4 +1,5 @@
 {
+    "compatibilityLevel": "JAVA_8",
     "package": "org.ultramine.mods.bukkit.mixin",
     "refmap": "mixin.umbukkit.refmap.json",
     "mixins": [