diff --git a/ServerStatus/build.gradle.kts b/ServerStatus/build.gradle.kts
index df2fe34..e41f37f 100644
--- a/ServerStatus/build.gradle.kts
+++ b/ServerStatus/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
-    id("net.neoforged.moddev") version "2.0.80"
-    kotlin("jvm") version "2.0.0"
-    kotlin("plugin.serialization") version "2.0.0"
+    id("net.neoforged.moddev") version "2.0.141"
+    kotlin("jvm") version "2.3.0"
+    kotlin("plugin.serialization") version "2.3.0"
 }
 
 version = project.property("mod_version") as String
diff --git a/ServerStatus/gradle.properties b/ServerStatus/gradle.properties
index ae632a1..c6cc3de 100644
--- a/ServerStatus/gradle.properties
+++ b/ServerStatus/gradle.properties
@@ -9,13 +9,13 @@ mod_authors=beemer
 # NeoForge 버전
 minecraft_version=1.21.1
 minecraft_version_range=[1.21.1,1.22)
-neo_version=21.1.77
+neo_version=21.1.227
 neo_version_range=[21.1.0,)
 loader_version_range=[4,)
 
 # Kotlin 버전
-kotlin_version=2.0.0
-kotlin_for_forge_version=5.6.0
+kotlin_version=2.3.0
+kotlin_for_forge_version=5.11.0
 
 # Gradle
 org.gradle.jvmargs=-Xmx3G
diff --git a/ServerStatus/src/main/kotlin/com/beemer/serverstatus/data/PlayerStatsCollector.kt b/ServerStatus/src/main/kotlin/com/beemer/serverstatus/data/PlayerStatsCollector.kt
index 5b17f63..73aef06 100644
--- a/ServerStatus/src/main/kotlin/com/beemer/serverstatus/data/PlayerStatsCollector.kt
+++ b/ServerStatus/src/main/kotlin/com/beemer/serverstatus/data/PlayerStatsCollector.kt
@@ -51,7 +51,7 @@ class PlayerStatsCollector {
             BuiltInRegistries.BLOCK.forEach { block ->
                 val mined = statsManager.getValue(Stats.BLOCK_MINED.get(block))
                 if (mined > 0) {
-                    val blockId = BuiltInRegistries.BLOCK.getKey(block)?.path ?: return@forEach
+                    val blockId = BuiltInRegistries.BLOCK.getKey(block).path
                     itemStats.getOrPut(blockId) { ItemStat() }.mined = mined
                 }
             }
@@ -60,7 +60,7 @@ class PlayerStatsCollector {
             BuiltInRegistries.ITEM.forEach { item ->
                 val picked = statsManager.getValue(Stats.ITEM_PICKED_UP.get(item))
                 if (picked > 0) {
-                    val itemId = BuiltInRegistries.ITEM.getKey(item)?.path ?: return@forEach
+                    val itemId = BuiltInRegistries.ITEM.getKey(item).path
                     itemStats.getOrPut(itemId) { ItemStat() }.pickedUp = picked
                 }
             }
@@ -69,7 +69,7 @@ class PlayerStatsCollector {
             BuiltInRegistries.ITEM.forEach { item ->
                 val used = statsManager.getValue(Stats.ITEM_USED.get(item))
                 if (used > 0) {
-                    val itemId = BuiltInRegistries.ITEM.getKey(item)?.path ?: return@forEach
+                    val itemId = BuiltInRegistries.ITEM.getKey(item).path
                     itemStats.getOrPut(itemId) { ItemStat() }.used = used
                 }
             }
@@ -78,7 +78,7 @@ class PlayerStatsCollector {
             BuiltInRegistries.ITEM.forEach { item ->
                 val crafted = statsManager.getValue(Stats.ITEM_CRAFTED.get(item))
                 if (crafted > 0) {
-                    val itemId = BuiltInRegistries.ITEM.getKey(item)?.path ?: return@forEach
+                    val itemId = BuiltInRegistries.ITEM.getKey(item).path
                     itemStats.getOrPut(itemId) { ItemStat() }.crafted = crafted
                 }
             }
@@ -91,9 +91,7 @@ class PlayerStatsCollector {
                 try {
                     val killed = statsManager.getValue(Stats.ENTITY_KILLED.get(entityType))
                     if (killed > 0) {
-                        val entityId =
-                                BuiltInRegistries.ENTITY_TYPE.getKey(entityType)?.path
-                                        ?: return@forEach
+                        val entityId = BuiltInRegistries.ENTITY_TYPE.getKey(entityType).path
                         mobStats.getOrPut(entityId) { MobStat() }.killed = killed
                     }
                 } catch (e: Exception) {}
@@ -104,9 +102,7 @@ class PlayerStatsCollector {
                 try {
                     val killedBy = statsManager.getValue(Stats.ENTITY_KILLED_BY.get(entityType))
                     if (killedBy > 0) {
-                        val entityId =
-                                BuiltInRegistries.ENTITY_TYPE.getKey(entityType)?.path
-                                        ?: return@forEach
+                        val entityId = BuiltInRegistries.ENTITY_TYPE.getKey(entityType).path
                         mobStats.getOrPut(entityId) { MobStat() }.killedBy = killedBy
                     }
                 } catch (e: Exception) {}
diff --git a/ServerStatus/src/main/kotlin/com/beemer/serverstatus/log/LogUploadService.kt b/ServerStatus/src/main/kotlin/com/beemer/serverstatus/log/LogUploadService.kt
index e34856e..edc0134 100644
--- a/ServerStatus/src/main/kotlin/com/beemer/serverstatus/log/LogUploadService.kt
+++ b/ServerStatus/src/main/kotlin/com/beemer/serverstatus/log/LogUploadService.kt
@@ -4,7 +4,7 @@ import com.beemer.serverstatus.ServerStatusMod
 import java.io.DataOutputStream
 import java.io.File
 import java.net.HttpURLConnection
-import java.net.URL
+import java.net.URI
 import java.util.concurrent.Executors
 
 /** 서버 시작 시 이전 로그 파일을 백엔드로 업로드하는 서비스 */
@@ -69,7 +69,7 @@ object LogUploadService {
 
     /** 파일 업로드 (multipart/form-data) */
     private fun uploadFile(backendUrl: String, serverId: String, file: File) {
-        val url = URL("$backendUrl/api/admin/logs/upload")
+        val url = URI("$backendUrl/api/admin/logs/upload").toURL()
         val boundary = "----FormBoundary${System.currentTimeMillis()}"
 
         val connection = url.openConnection() as HttpURLConnection