diff --git a/pom.xml b/pom.xml
index 1aca078..2f76e43 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
         <kotlin.version>1.1.51</kotlin.version>
         <bujiVersion>4.0.0</bujiVersion>
         <pac4jVersion>3.4.0</pac4jVersion>
-        <vaadin.version>7.7.6</vaadin.version>
+        <vaadin.version>8.12.4</vaadin.version>
     </properties>
 
     <repositories>