diff --git a/mysql-replicator-applier/pom.xml b/mysql-replicator-applier/pom.xml
index 3854620d..1e636183 100644
--- a/mysql-replicator-applier/pom.xml
+++ b/mysql-replicator-applier/pom.xml
@@ -37,7 +37,7 @@
                 <dependency>
                     <groupId>com.google.protobuf</groupId>
                     <artifactId>protobuf-java</artifactId>
-                    <version>2.5.0</version>
+                    <version>3.16.3</version>
                 </dependency>
                 <dependency>
                     <groupId>com.google.guava</groupId>
@@ -58,7 +58,7 @@
                 <dependency>
                     <groupId>com.google.protobuf</groupId>
                     <artifactId>protobuf-java</artifactId>
-                    <version>3.11.1</version>
+                    <version>3.16.3</version>
                 </dependency>
                 <dependency>
                     <groupId>com.google.guava</groupId>