diff --git a/build.gradle.kts b/build.gradle.kts
index 5a1e0b4..77b73b0 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -44,7 +44,7 @@ configurations.all {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(8))
+    languageVersion.set(JavaLanguageVersion.of(17))
   }
 }