diff --git a/build.gradle.kts b/build.gradle.kts
index 63042c4..f4080d7 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -46,7 +46,7 @@ allprojects {
 
     java {
         withSourcesJar()
-        toolchain.languageVersion.set(JavaLanguageVersion.of(17))
+        toolchain.languageVersion.set(JavaLanguageVersion.of(21))
     }
 
     tasks {
@@ -57,7 +57,7 @@ allprojects {
 
         compileKotlin {
             compilerOptions {
-                jvmTarget.set(JvmTarget.JVM_17)
+                jvmTarget.set(JvmTarget.JVM_21)
             }
         }
 
diff --git a/eco-core/core-plugin/src/main/resources/plugin.yml b/eco-core/core-plugin/src/main/resources/plugin.yml
index e02c5ac..1eaaaca 100644
--- a/eco-core/core-plugin/src/main/resources/plugin.yml
+++ b/eco-core/core-plugin/src/main/resources/plugin.yml
@@ -1,7 +1,7 @@
 name: ${pluginName}
 version: ${version}
 main: com.willfp.ecomobs.EcoMobsPlugin
-api-version: 1.17
+api-version: 1.21.4
 authors: [ Auxilor ]
 website: willfp.com
 depend:
diff --git a/gradle.properties b/gradle.properties
index a49ad26..0fae1a0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 #libreforge-updater
-#Thu Sep 11 09:59:41 BST 2025
+#Sat Oct 04 15:33:17 BST 2025
 kotlin.code.style=official
-libreforge-version=4.78.0
+libreforge-version=4.79.0
 version=10.23.0