diff --git a/aptu/604_15/vay/1/pom.xml b/aptu/604_15/vay/1/pom.xml
index 0c76e456..22b46dc1 100644
--- a/aptu/604_15/vay/1/pom.xml
+++ b/aptu/604_15/vay/1/pom.xml
@@ -11,7 +11,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>2.6.1</version>
+            <version>3.16.3</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>