diff --git a/samples/grpc-app/build.gradle.kts b/samples/grpc-app/build.gradle.kts
index 2cddfba6f..1668a5fea 100644
--- a/samples/grpc-app/build.gradle.kts
+++ b/samples/grpc-app/build.gradle.kts
@@ -3,9 +3,8 @@
  */
 
 plugins {
-    kotlin("jvm") version "2.1.10"
-    kotlin("plugin.serialization") version "2.1.10"
-    id("org.jetbrains.kotlinx.rpc.plugin") version "0.7.0"
+    kotlin("jvm") version "2.2.0"
+    id("org.jetbrains.kotlinx.rpc.plugin") version "0.8.0-grpc-79"
     id("com.google.protobuf") version "0.9.5"
 }
 
@@ -22,7 +21,7 @@ kotlin {
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlinx:kotlinx-rpc-grpc-core:0.7.0-grpc-56")
+    implementation("org.jetbrains.kotlinx:kotlinx-rpc-grpc-core:0.8.0-grpc-71")
     implementation("ch.qos.logback:logback-classic:1.5.18")
     implementation("io.grpc:grpc-netty:1.73.0")
 }
diff --git a/samples/grpc-app/src/main/kotlin/Client.kt b/samples/grpc-app/src/main/kotlin/Client.kt
index 4a81eae34..48bccc45d 100644
--- a/samples/grpc-app/src/main/kotlin/Client.kt
+++ b/samples/grpc-app/src/main/kotlin/Client.kt
@@ -2,7 +2,6 @@
  * Copyright 2023-2025 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
  */
 
-import kotlinx.coroutines.cancel
 import kotlinx.coroutines.runBlocking
 import kotlinx.rpc.grpc.GrpcClient
 import kotlinx.rpc.withService
@@ -19,6 +18,4 @@ fun main(): Unit = runBlocking {
     }
     val result = recognizer.recognize(image)
     println("Recognized category: ${result.category}")
-
-    grpcClient.cancel()
 }