diff --git a/build.gradle.kts b/build.gradle.kts
index 561b466..8b7a736 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -44,7 +44,7 @@ allprojects {
 
     java {
         withSourcesJar()
-        toolchain.languageVersion.set(JavaLanguageVersion.of(21))
+        toolchain.languageVersion.set(JavaLanguageVersion.of(17))
     }
 
     tasks {
@@ -55,7 +55,7 @@ allprojects {
 
         compileKotlin {
             kotlinOptions {
-                jvmTarget = "21"
+                jvmTarget = "17"
             }
         }
 
diff --git a/gradle.properties b/gradle.properties
index 6fff2b4..3cd16ef 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 #libreforge-updater
 #Fri Jul 05 13:02:38 BST 2024
 kotlin.code.style=official
-libreforge-version=4.64.1
+libreforge-version=4.65.0
 version=10.9.1