diff --git a/build.gradle.kts b/build.gradle.kts
index 8db6e0a4..614ee95b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -13,10 +13,8 @@ plugins {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(8))
+        languageVersion.set(JavaLanguageVersion.of(11))
     }
 }
 group = "com.github.spotbugs.snom"