diff --git a/pom.xml b/pom.xml
index 47fb231..b4a9a2d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
     <encoding>UTF-8</encoding>
 
     <opentracing.version>0.33.0</opentracing.version>
-    <protobuf.version>3.3.1</protobuf.version>
+    <protobuf.version>3.16.3</protobuf.version>
     <slf4j.version>1.7.25</slf4j.version>
     <junit.version>4.12</junit.version>
     <mockito.version>1.9.5</mockito.version>