diff --git a/build.gradle b/build.gradle
index 078791f..f89eaee 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,6 +10,9 @@ version = '0.0.2'
 java {
 	sourceCompatibility = '21'
 	targetCompatibility = '21'
+	toolchain {
+		languageVersion = JavaLanguageVersion.of(21)
+	}
 }
 
 configurations {