diff --git a/example-server/build.gradle.kts b/example-server/build.gradle.kts
index 1a70a68..72ac644 100644
--- a/example-server/build.gradle.kts
+++ b/example-server/build.gradle.kts
@@ -53,7 +53,7 @@ dependencies {
 
     implementation("io.grpc:grpc-netty-shaded:1.20.0")
     implementation("io.grpc:grpc-protobuf:1.20.0")
-    implementation("io.grpc:grpc-stub:1.20.0")
+    implementation("io.grpc:grpc-stub:1.40.1")
     implementation("io.grpc:grpc-services:1.20.0")
 
     testImplementation(kotlin("test"))