diff --git a/build.gradle b/build.gradle
index 89fcea96..1eba4f17 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
     id 'maven-publish'
 }
 
-sourceCompatibility = targetCompatibility = JavaVersion.VERSION_21
+sourceCompatibility = targetCompatibility = JavaVersion.VERSION_17
 
 archivesBaseName = project.archives_base_name
 version = project.mod_version