diff --git a/SpringBootGRpc/build.gradle b/SpringBootGRpc/build.gradle
index a1f5012e..33de10df 100644
--- a/SpringBootGRpc/build.gradle
+++ b/SpringBootGRpc/build.gradle
@@ -9,7 +9,7 @@ repositories {
 	mavenCentral()
 }
 
-var protobufVersion='3.25.3'
+var protobufVersion='4.28.1'
 var grpcVersion='1.66.0'
 
 dependencies {