diff --git a/plugin/build.gradle.kts b/plugin/build.gradle.kts
index 595f171..669fdf1 100644
--- a/plugin/build.gradle.kts
+++ b/plugin/build.gradle.kts
@@ -70,15 +70,15 @@ artifacts {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
     toolchain {
-        languageVersion = JavaLanguageVersion.of(17)
+        languageVersion = JavaLanguageVersion.of(21)
     }
 }
 
 tasks.withType<JavaCompile> {
     options.encoding = "UTF-8"
-    options.release.set(17)
+    options.release.set(21)
     dependsOn(tasks.clean)
 }