diff --git a/src/main/java/com/spaceclub/board/controller/dto/CommentResponse.java b/src/main/java/com/spaceclub/board/controller/dto/CommentResponse.java
index 080371b7..6ef891d0 100644
--- a/src/main/java/com/spaceclub/board/controller/dto/CommentResponse.java
+++ b/src/main/java/com/spaceclub/board/controller/dto/CommentResponse.java
@@ -21,7 +21,7 @@ public static CommentResponse of(CommentInfo commentInfo, String bucketUrl) {
                 commentInfo.content(),
                 commentInfo.authorId(),
                 commentInfo.author(),
-                commentInfo.authorImageUrl() == null ? null : bucketUrl + commentInfo.authorImageUrl(),
+                commentInfo.authorImageUrl(),
                 commentInfo.createdDate(),
                 commentInfo.lastModifiedDate(),
                 commentInfo.isPrivate()
diff --git a/src/main/java/com/spaceclub/board/controller/dto/PostResponse.java b/src/main/java/com/spaceclub/board/controller/dto/PostResponse.java
index a5e8b473..b9869854 100644
--- a/src/main/java/com/spaceclub/board/controller/dto/PostResponse.java
+++ b/src/main/java/com/spaceclub/board/controller/dto/PostResponse.java
@@ -23,8 +23,8 @@ public static PostResponse from(PostInfo postInfo, String bucketUrl) {
                 postInfo.content(),
                 postInfo.authorId(),
                 postInfo.author(),
-                postInfo.authorImageUrl() == null ? null : bucketUrl + postInfo.authorImageUrl(),
-                postInfo.postImageUrl() == null ? null : bucketUrl + postInfo.postImageUrl(),
+                postInfo.authorImageUrl(),
+                postInfo.postImageUrl(bucketUrl),
                 postInfo.createdDate(),
                 postInfo.lastModifiedDate()
         );
diff --git a/src/main/java/com/spaceclub/board/service/vo/PostInfo.java b/src/main/java/com/spaceclub/board/service/vo/PostInfo.java
index b7a20230..3bf5d224 100644
--- a/src/main/java/com/spaceclub/board/service/vo/PostInfo.java
+++ b/src/main/java/com/spaceclub/board/service/vo/PostInfo.java
@@ -31,4 +31,12 @@ public static PostInfo of(Post post, UserProfile userProfile) {
                 post.getLastModifiedAt()
         );
     }
+
+    public String postImageUrl(String bucketUrl) {
+        if (postImageUrl == null) {
+            return null;
+        }
+        return bucketUrl + postImageUrl;
+    }
+
 }
diff --git a/src/test/java/com/spaceclub/board/controller/CommentControllerTest.java b/src/test/java/com/spaceclub/board/controller/CommentControllerTest.java
index 0fdb93bd..78aab7cc 100644
--- a/src/test/java/com/spaceclub/board/controller/CommentControllerTest.java
+++ b/src/test/java/com/spaceclub/board/controller/CommentControllerTest.java
@@ -204,7 +204,7 @@ class CommentControllerTest {
                 .andExpect(jsonPath("$.content").value(comment.getContent()))
                 .andExpect(jsonPath("$.authorId").value(comment.getAuthorId()))
                 .andExpect(jsonPath("$.author").value(userProfile.username()))
-                .andExpect(jsonPath("$.authorImageUrl").value(bucketUrl + userProfile.profileImageUrl()))
+                .andExpect(jsonPath("$.authorImageUrl").value(userProfile.profileImageUrl()))
                 .andExpect(jsonPath("$.createdDate").value("2024-01-01T00:00:00"))
                 .andExpect(jsonPath("$.lastModifiedDate").value("2024-01-01T00:00:00"))
                 .andExpect(jsonPath("$.isPrivate").value(comment.isPrivate()))
diff --git a/src/test/java/com/spaceclub/board/controller/PostControllerTest.java b/src/test/java/com/spaceclub/board/controller/PostControllerTest.java
index 2846e4df..02faddbb 100644
--- a/src/test/java/com/spaceclub/board/controller/PostControllerTest.java
+++ b/src/test/java/com/spaceclub/board/controller/PostControllerTest.java
@@ -216,7 +216,7 @@ class PostControllerTest {
                 .andExpect(jsonPath("$.content").value(post.getContent()))
                 .andExpect(jsonPath("$.authorId").value(post.getAuthorId()))
                 .andExpect(jsonPath("$.author").value(userProfile.username()))
-                .andExpect(jsonPath("$.authorImageUrl").value(bucketUrl + userProfile.profileImageUrl()))
+                .andExpect(jsonPath("$.authorImageUrl").value(userProfile.profileImageUrl()))
                 .andExpect(jsonPath("$.postImageUrl").value(bucketUrl + post.getPostImageUrl()))
                 .andExpect(jsonPath("$.createdDate").value("2024-01-01T00:00:00"))
                 .andExpect(jsonPath("$.lastModifiedDate").value("2024-01-01T00:00:00"))