diff --git a/build.gradle b/build.gradle
index 7994f2c..e8ab524 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,6 +30,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
 	implementation 'org.springframework.boot:spring-boot-starter-webflux'
 	implementation 'com.fasterxml.jackson.core:jackson-databind'
+	implementation 'org.springframework.boot:spring-boot-starter-validation'
 
 	compileOnly 'org.projectlombok:lombok'
 	runtimeOnly 'com.mysql:mysql-connector-j'