diff --git a/backend/build.gradle b/backend/build.gradle
index 873ca9bf..c5f78c38 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -1,7 +1,7 @@
 plugins {
     id "java"
     id "idea"
-    id "org.springframework.boot" version "3.5.5"
+    id "org.springframework.boot" version "4.0.3"
     id "io.spring.dependency-management" version "1.1.7"
     id "io.freefair.lombok" version "8.14"
     id "com.github.spotbugs" version "6.4.8"