diff --git a/README.md b/README.md
index 866b860..f7272ae 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 [![CI](https://github.com/rogervinas/spring-immutable-configuration-properties/actions/workflows/gradle.yml/badge.svg?branch=master)](https://github.com/rogervinas/spring-immutable-configuration-properties/actions/workflows/gradle.yml)
 ![Java](https://img.shields.io/badge/Java-21-blue?labelColor=black)
 ![Kotlin](https://img.shields.io/badge/Kotlin-2.0.0-blue?labelColor=black)
-![SpringBoot](https://img.shields.io/badge/SpringBoot-3.2.5-blue?labelColor=black)
+![SpringBoot](https://img.shields.io/badge/SpringBoot-3.3.0-blue?labelColor=black)
 
 # Spring Immutable @ConfigurationProperties
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 23213d6..2d92bab 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,7 +3,7 @@ import org.gradle.api.tasks.testing.logging.TestLogEvent.*
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-  id("org.springframework.boot") version "3.2.5"
+  id("org.springframework.boot") version "3.3.0"
   id("io.spring.dependency-management") version "1.1.5"
   kotlin("jvm") version "2.0.0"
   kotlin("plugin.spring") version "2.0.0"
@@ -21,7 +21,7 @@ dependencies {
   implementation("org.springframework.boot:spring-boot-starter")
   implementation("org.jetbrains.kotlin:kotlin-reflect")
   testImplementation("org.springframework.boot:spring-boot-starter-test")
-  testImplementation("org.assertj:assertj-core:3.25.3")
+  testImplementation("org.assertj:assertj-core:3.26.0")
 }
 
 tasks.withType<KotlinCompile> {