diff --git a/build.gradle b/build.gradle
index 8cf975f..abae7e6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -53,7 +53,7 @@ apply plugin: 'com.google.protobuf'
 
 protobuf {
     protoc {
-        artifact = 'com.google.protobuf:protoc:3.25.4'
+        artifact = 'com.google.protobuf:protoc:4.28.0'
     }
     plugins {
         grpc {
@@ -76,8 +76,8 @@ dependencies {
     implementation 'org.apache.commons:commons-lang3:3.16.0'
     implementation 'org.apache.logging.log4j:log4j-api:2.23.1'
     implementation 'org.apache.logging.log4j:log4j-core:2.23.1'
-    implementation 'com.google.protobuf:protobuf-java:3.25.4'
-    implementation 'com.google.protobuf:protobuf-java-util:3.25.4'
+    implementation 'com.google.protobuf:protobuf-java:4.28.0'
+    implementation 'com.google.protobuf:protobuf-java-util:4.28.0'
     implementation 'com.google.guava:guava:33.3.0-jre'
     implementation "io.grpc:grpc-core:1.66.0"
     implementation "io.grpc:grpc-stub:1.66.0"