diff --git a/tools/build.gradle b/tools/build.gradle
index c3e89333..a88872a8 100644
--- a/tools/build.gradle
+++ b/tools/build.gradle
@@ -3,8 +3,8 @@ plugins {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 dependencies {