diff --git a/leti/0381/ma/1/NioChat/srcServer/pom.xml b/leti/0381/ma/1/NioChat/srcServer/pom.xml
index 0fb49e32..b1ec06ef 100644
--- a/leti/0381/ma/1/NioChat/srcServer/pom.xml
+++ b/leti/0381/ma/1/NioChat/srcServer/pom.xml
@@ -15,7 +15,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.0.0-beta-1</version>
+            <version>3.16.3</version>
             <scope>compile</scope>
         </dependency>
         <dependency>