diff --git a/samples/grpc-client/build.gradle b/samples/grpc-client/build.gradle
index af3d04bf..d89d0922 100644
--- a/samples/grpc-client/build.gradle
+++ b/samples/grpc-client/build.gradle
@@ -41,7 +41,7 @@ dependencies {
 
 	testImplementation 'org.springframework.grpc:spring-grpc-test'
 	testImplementation 'org.springframework.boot:spring-boot-web-server'
-	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0-RC1'
+	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0'
 
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
diff --git a/samples/grpc-client/pom.xml b/samples/grpc-client/pom.xml
index 0f620a7f..e7e32c8e 100644
--- a/samples/grpc-client/pom.xml
+++ b/samples/grpc-client/pom.xml
@@ -66,7 +66,7 @@
 		<dependency>
 			<groupId>org.springframework.experimental.boot</groupId>
 			<artifactId>spring-boot-testjars-maven</artifactId>
-			<version>0.4.0.0-RC1</version>
+			<version>0.4.0.0</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
diff --git a/samples/grpc-oauth2/build.gradle b/samples/grpc-oauth2/build.gradle
index 27adcabf..598858be 100644
--- a/samples/grpc-oauth2/build.gradle
+++ b/samples/grpc-oauth2/build.gradle
@@ -47,7 +47,7 @@ dependencies {
 
 	testImplementation 'org.springframework.grpc:spring-grpc-test'
 	testImplementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
-	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0-RC1'
+	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0'
 
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
diff --git a/samples/grpc-oauth2/pom.xml b/samples/grpc-oauth2/pom.xml
index c9b84569..4ea240cb 100644
--- a/samples/grpc-oauth2/pom.xml
+++ b/samples/grpc-oauth2/pom.xml
@@ -67,7 +67,7 @@
 		<dependency>
 			<groupId>org.springframework.experimental.boot</groupId>
 			<artifactId>spring-boot-testjars-maven</artifactId>
-			<version>0.4.0.0-RC1</version>
+			<version>0.4.0.0</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
diff --git a/samples/grpc-webflux-secure/build.gradle b/samples/grpc-webflux-secure/build.gradle
index 2e357629..75664d2b 100644
--- a/samples/grpc-webflux-secure/build.gradle
+++ b/samples/grpc-webflux-secure/build.gradle
@@ -48,7 +48,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
 
 	testImplementation 'org.springframework.grpc:spring-grpc-test'
-	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0-RC1'
+	testImplementation 'org.springframework.experimental.boot:spring-boot-testjars-maven:0.4.0.0'
 
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
diff --git a/samples/grpc-webflux-secure/pom.xml b/samples/grpc-webflux-secure/pom.xml
index b21d5f2d..10c1b75c 100644
--- a/samples/grpc-webflux-secure/pom.xml
+++ b/samples/grpc-webflux-secure/pom.xml
@@ -70,7 +70,7 @@
 		<dependency>
 			<groupId>org.springframework.experimental.boot</groupId>
 			<artifactId>spring-boot-testjars-maven</artifactId>
-			<version>0.4.0.0-RC1</version>
+			<version>0.4.0.0</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>