diff --git a/backend/build.gradle.kts b/backend/build.gradle.kts
index fb5caf8..8fa24a8 100644
--- a/backend/build.gradle.kts
+++ b/backend/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
 	java
-	id("org.springframework.boot") version "3.5.7"
+	id("org.springframework.boot") version "4.0.0"
 	id("io.spring.dependency-management") version "1.1.7"
 }
 
@@ -45,7 +45,7 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-amqp")
 
     // Security
-    implementation("org.springframework.boot:spring-boot-starter-security:3.5.7")
+    implementation("org.springframework.boot:spring-boot-starter-security:4.0.0")
     implementation("io.jsonwebtoken:jjwt-api:0.13.0")
     runtimeOnly("io.jsonwebtoken:jjwt-impl:0.13.0")
     runtimeOnly("io.jsonwebtoken:jjwt-jackson:0.13.0")