diff --git a/src/main/java/com/alterdekim/game/component/game/GameRoom.java b/src/main/java/com/alterdekim/game/component/game/GameRoom.java
index 5b9fdb5..e98319b 100644
--- a/src/main/java/com/alterdekim/game/component/game/GameRoom.java
+++ b/src/main/java/com/alterdekim/game/component/game/GameRoom.java
@@ -9,6 +9,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.jsontype.BasicPolymorphicTypeValidator;
 import com.fasterxml.jackson.databind.jsontype.PolymorphicTypeValidator;
+import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.socket.TextMessage;
@@ -36,12 +37,13 @@ public class GameRoom {
     private final ObjectMapper om;
 
     public GameRoom(List<RoomPlayer> players, UserServiceImpl userService) {
-        PolymorphicTypeValidator ptv = BasicPolymorphicTypeValidator.builder()
+        /*PolymorphicTypeValidator ptv = BasicPolymorphicTypeValidator.builder()
                 .allowIfSubType("com.alterdekim.game.component.game.DialogButtonsList")
                 .allowIfSubType("java.util.ArrayList")
-                .build();
+                .build();*/
         this.om = new ObjectMapper();
-        this.om.activateDefaultTyping(ptv, ObjectMapper.DefaultTyping.NON_FINAL);
+        //this.om.activateDefaultTyping(ptv, ObjectMapper.DefaultTyping.NON_FINAL);
+        this.om.activateDefaultTyping(new LaissezFaireSubTypeValidator(), ObjectMapper.DefaultTyping.EVERYTHING);
         this.userService = userService;
         this.players = players.stream()
                 .map(p -> new GamePlayer(p.getUserId(), userService.findById(p.getUserId()).getDisplayName(), 0, new Chip(p.getUserId(), 0, 0, "#000000")))