diff --git a/gradle.properties b/gradle.properties
index a3bce76..2724a98 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -37,7 +37,7 @@ mod_name=Dimensional Ripper
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=MIT
 # The mod version. See https://semver.org/
-mod_version=1.1.3
+mod_version=1.1.4
 # The group ID for the mod. It is only important when publishing build artifacts to Maven.
 mod_group_id=dev.modzuozhi
 # The authors of the mod. This is a simple text string that is used for display purposes in the mod list.
diff --git a/src/main/java/dev/modzuozhi/core/dimthread/ServerManager.java b/src/main/java/dev/modzuozhi/core/dimthread/ServerManager.java
index 255120b..a785786 100644
--- a/src/main/java/dev/modzuozhi/core/dimthread/ServerManager.java
+++ b/src/main/java/dev/modzuozhi/core/dimthread/ServerManager.java
@@ -197,7 +197,9 @@ public class ServerManager {
      * 已在正确 loop 中的连接是 no-op，仅发生实际迁移时才增删。单机/少量玩家时开销可忽略。
      */
     public void reconcileConnections(MinecraftServer server) {
-        for (ServerPlayer player : server.getPlayerList().getPlayers()) {
+        // 快照拷贝：playerList.getPlayers() 返回不可变包装，高负载下（大量假人批量上线/下线）
+        // 原列表可能被并发修改 → 遍历报 ConcurrentModificationException。拷贝后迭代安全。
+        for (ServerPlayer player : new java.util.ArrayList<>(server.getPlayerList().getPlayers())) {
             if (player.connection != null) {
                 routeConnection(player.connection.getConnection(), player.serverLevel());
             }