diff --git a/demo-gwt/pom.xml b/demo-gwt/pom.xml
index 4798861..8576378 100644
--- a/demo-gwt/pom.xml
+++ b/demo-gwt/pom.xml
@@ -28,7 +28,7 @@
     <servlet-api.version>2.5</servlet-api.version>
     <guice.version>3.0</guice.version>
     <guava.version>13.0.1</guava.version>
-    <hibernate-validator.version>4.3.0.Final</hibernate-validator.version>
+    <hibernate-validator.version>5.3.5.Final</hibernate-validator.version>
     <hibernate.version>4.1.7.Final</hibernate.version>
     <hsqldb.version>2.2.8</hsqldb.version>
     <slf4j.version>1.7.1</slf4j.version>