diff --git a/build.gradle.kts b/build.gradle.kts
index 7c634f5..2cd67de 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    kotlin("jvm") version "1.7.20" apply false
-    id("com.google.protobuf") version "0.9.2" apply false
+    kotlin("jvm") version "1.9.22" apply false
+    id("com.google.protobuf") version "0.9.4" apply false
     `maven-publish`
     id("org.jlleitschuh.gradle.ktlint") version "11.3.1"
     signing
@@ -11,11 +11,11 @@ if (project.hasProperty("releaseVersion")) {
     version = project.property("releaseVersion") as String
 }
 
-ext["grpcJavaVersion"] = "1.54.0"
-ext["grpcKotlinVersion"] = "1.3.0"
-ext["protobufVersion"] = "3.22.2"
-ext["coroutinesVersion"] = "1.6.2"
-ext["kotlinPoetVersion"] = "1.12.0"
+ext["grpcJavaVersion"] = "1.61.1"
+ext["grpcKotlinVersion"] = "1.4.1"
+ext["protobufVersion"] = "3.25.3"
+ext["coroutinesVersion"] = "1.8.0"
+ext["kotlinPoetVersion"] = "1.16.0"
 
 repositories {
     mavenCentral()
diff --git a/generator/build.gradle.kts b/generator/build.gradle.kts
index 3a14487..074a1f8 100644
--- a/generator/build.gradle.kts
+++ b/generator/build.gradle.kts
@@ -39,6 +39,7 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter-engine:5.9.2")
     // https://mvnrepository.com/artifact/org.assertj/assertj-core
     testImplementation("org.assertj:assertj-core:3.24.2")
+    testImplementation("io.grpc:grpc-inprocess:${rootProject.ext["grpcJavaVersion"]}")
     testImplementation("io.grpc:grpc-testing:${rootProject.ext["grpcJavaVersion"]}")
 }