diff --git a/build.gradle b/build.gradle
index 1a6a216e1..5139ef6bc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -54,7 +54,7 @@ spotless {
 compileJava.options.encoding = 'UTF-8'
 compileTestJava.options.encoding = 'UTF-8'
 
-sourceCompatibility = JavaVersion.VERSION_17
+sourceCompatibility = JavaVersion.VERSION_21
 targetCompatibility = JavaVersion.VERSION_17
 
 group = 'io.grasscutter'
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index aa991fcea..0d1842103 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists