diff --git a/build.gradle b/build.gradle
index af826ee..4a99ff7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,6 +23,7 @@ ext {
 
 dependencies {
 	implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-server'
+	implementation 'com.github.ben-manes.caffeine:caffeine:3.1.2'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'