diff --git a/build.gradle.kts b/build.gradle.kts
index 2e171c1..a0c15fb 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ plugins {
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(8))
+        languageVersion.set(JavaLanguageVersion.of(17))
     }
     withSourcesJar()
 }