diff --git a/src/main/java/org/prgrms/nabimarketbe/domain/card/entity/Card.java b/src/main/java/org/prgrms/nabimarketbe/domain/card/entity/Card.java
index c6d6c73e..3e2c3f01 100644
--- a/src/main/java/org/prgrms/nabimarketbe/domain/card/entity/Card.java
+++ b/src/main/java/org/prgrms/nabimarketbe/domain/card/entity/Card.java
@@ -69,25 +69,23 @@ public class Card extends BaseEntity {
     private Item item;
 
     @Builder
-    public Card(
+    private Card(
             String cardTitle,
-            String thumbNailImage,
             String content,
             String tradeArea,
             Boolean poke,
             TradeType tradeType,
             Item item
     ) {
-//        if (cardTitle.isBlank() || thumbNailImage.isBlank() || content.isBlank() || tradeArea.isBlank()) {
-//            throw new BaseException(ErrorCode.UNKNOWN);
-//        }
+        if (cardTitle.isBlank() || content.isBlank() || tradeArea.isBlank()) {
+            throw new BaseException(ErrorCode.UNKNOWN);
+        }
 
         if (poke == null || tradeType == null || item == null) {
             throw new BaseException(ErrorCode.UNKNOWN);
         }
 
         this.cardTitle = cardTitle;
-//        this.thumbNailImage = thumbNailImage;
         this.content = content;
         this.tradeArea = tradeArea;
         this.poke = poke;