diff --git a/plugins/fancydialogs/api/build.gradle.kts b/plugins/fancydialogs/api/build.gradle.kts
index a38ac88f..5a360d08 100644
--- a/plugins/fancydialogs/api/build.gradle.kts
+++ b/plugins/fancydialogs/api/build.gradle.kts
@@ -68,7 +68,7 @@ tasks {
     compileJava {
         options.encoding = Charsets.UTF_8.name()
 
-        options.release.set(17)
+        options.release.set(21)
     }
 }