diff --git a/pom.xml b/pom.xml
index 46a4629..09be576 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
         <maven.compiler.target>15</maven.compiler.target>
 
         <retrofit.version>2.9.0</retrofit.version>
-        <protobuf.version>3.19.3</protobuf.version>
+        <protobuf.version>3.21.12</protobuf.version>
         <slf4j.version>1.7.30</slf4j.version>
         <log4j.version>2.17.1</log4j.version>
         <grpc.version>1.37.0</grpc.version>