diff --git a/samples/grpc-server-kotlin/build.gradle b/samples/grpc-server-kotlin/build.gradle
index 58221f86..a9d60235 100644
--- a/samples/grpc-server-kotlin/build.gradle
+++ b/samples/grpc-server-kotlin/build.gradle
@@ -29,7 +29,7 @@ dependencyManagement {
     }
 }
 
-def kotlinStubVersion = "1.4.3"
+def kotlinStubVersion = "1.5.0"
 
 dependencies {
 
diff --git a/samples/grpc-server-kotlin/pom.xml b/samples/grpc-server-kotlin/pom.xml
index 2d35af6b..5ae0ef9d 100644
--- a/samples/grpc-server-kotlin/pom.xml
+++ b/samples/grpc-server-kotlin/pom.xml
@@ -32,7 +32,7 @@
 		<spring-javaformat-maven-plugin.version>0.0.43</spring-javaformat-maven-plugin.version>
 		<protobuf-java.version>4.31.1</protobuf-java.version>
 		<grpc.version>1.74.0</grpc.version>
-		<grpc.kotlin.version>1.4.3</grpc.kotlin.version>
+		<grpc.kotlin.version>1.5.0</grpc.kotlin.version>
 		<kotlin.version>1.9.22</kotlin.version>
 	</properties>
 	<dependencyManagement>
diff --git a/spring-grpc-dependencies/pom.xml b/spring-grpc-dependencies/pom.xml
index 340ae3e4..31595cda 100644
--- a/spring-grpc-dependencies/pom.xml
+++ b/spring-grpc-dependencies/pom.xml
@@ -50,7 +50,7 @@
 
 	<properties>
 		<grpc.version>1.75.0</grpc.version>
-		<grpc-kotlin.version>1.4.3</grpc-kotlin.version>
+		<grpc-kotlin.version>1.5.0</grpc-kotlin.version>
 		<protobuf-java.version>4.32.1</protobuf-java.version>
 		<google-common-protos.version>2.61.2</google-common-protos.version>
 		<reactor-grpc.version>1.2.4</reactor-grpc.version>