diff --git a/gradle.properties b/gradle.properties
index 3cb81413..f18ef566 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-springBootVersion=3.3.4
+springBootVersion=3.4.0
 springDataBomVersion=2024.1.0
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c559c6dd..1b3da858 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 #Wed Apr 08 13:12:22 KST 2020
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-all.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
diff --git a/guide-projects/plus-sql-java-groovy-guide/build.gradle b/guide-projects/plus-sql-java-groovy-guide/build.gradle
index 27c5b678..2af8473b 100644
--- a/guide-projects/plus-sql-java-groovy-guide/build.gradle
+++ b/guide-projects/plus-sql-java-groovy-guide/build.gradle
@@ -11,10 +11,10 @@ compileGroovy {
 
 if (project.convention.findPlugin(JavaPluginConvention)) {
     // Change the output directory for the main and test source sets back to the old path
-    sourceSets.main.java.outputDir = new File(buildDir, "classes/main")
-    sourceSets.main.groovy.outputDir = new File(buildDir, "classes/main")
-    sourceSets.test.java.outputDir = new File(buildDir, "classes/test")
-    sourceSets.test.groovy.outputDir = new File(buildDir, "classes/test")
+    sourceSets.main.java.destinationDirectory = new File(buildDir, "classes/main")
+    sourceSets.main.groovy.destinationDirectory = new File(buildDir, "classes/main")
+    sourceSets.test.java.destinationDirectory = new File(buildDir, "classes/test")
+    sourceSets.test.groovy.destinationDirectory = new File(buildDir, "classes/test")
 }
 
 tasks.withType(GroovyCompile).configureEach {
@@ -34,7 +34,7 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation project(":spring-boot-starter-data-jdbc-plus-sql")
     implementation("org.springframework.boot:spring-boot-starter-actuator")
-    implementation('org.codehaus.groovy:groovy:3.0.13')
+    implementation('org.codehaus.groovy:groovy:3.0.23')
     implementation("com.h2database:h2")
 
     implementation("org.springframework.data:spring-data-jdbc")