diff --git a/leti/0381/da/1/NioChat/pom.xml b/leti/0381/da/1/NioChat/pom.xml
index 53e6d078..13ae11d4 100644
--- a/leti/0381/da/1/NioChat/pom.xml
+++ b/leti/0381/da/1/NioChat/pom.xml
@@ -19,7 +19,7 @@
             <dependency>
                 <groupId>com.google.protobuf</groupId>
                 <artifactId>protobuf-java</artifactId>
-                <version>2.6.1</version>
+                <version>3.16.1</version>
                 <scope>compile</scope>
             </dependency>
             <dependency>