diff --git a/build.gradle b/build.gradle
index f3fb559..f7767ab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 plugins {
     id 'java-library'
     id 'maven-publish'
-    id "com.github.bjornvester.xjc" version "1.7.1"
+    id "com.github.bjornvester.xjc" version "1.8.1"
     id "com.github.johnrengelman.shadow" version "8.1.1"
 }