diff --git a/build.gradle b/build.gradle
index 829bee4..89226b7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,6 +18,8 @@
     implementation 'org.springframework.boot:spring-boot-starter-jersey'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
+    //spring security
+    implementation 'org.springframework.boot:spring-boot-starter-security'
     runtimeOnly 'com.h2database:h2'
     providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
     testImplementation('org.springframework.boot:spring-boot-starter-test') {