diff --git a/build.gradle b/build.gradle
index ca3431b..b449197 100644
--- a/build.gradle
+++ b/build.gradle
@@ -53,8 +53,8 @@ java {
 	// If you remove this line, sources will not be generated.
 	withSourcesJar()
 
-	sourceCompatibility = JavaVersion.VERSION_17
-	targetCompatibility = JavaVersion.VERSION_17
+	sourceCompatibility = JavaVersion.VERSION_21
+	targetCompatibility = JavaVersion.VERSION_21
 }
 
 jar {