diff --git a/ucs-api/pom.xml b/ucs-api/pom.xml
index 2f33fc7..6aebcc5 100644
--- a/ucs-api/pom.xml
+++ b/ucs-api/pom.xml
@@ -23,7 +23,7 @@
 		<dependency>
 			<groupId>com.google.protobuf</groupId>
 			<artifactId>protobuf-java</artifactId>
-			<version>2.4.1</version>
+			<version>3.16.3</version>
 		</dependency>
 		<dependency>
 			<groupId>com.googlecode.protobuf-java-format</groupId>