diff --git a/examples/xo_java/pom.xml b/examples/xo_java/pom.xml
index eb999b45..d3221afb 100644
--- a/examples/xo_java/pom.xml
+++ b/examples/xo_java/pom.xml
@@ -81,7 +81,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.16.1</version>
+            <version>3.16.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>