diff --git a/build.gradle b/build.gradle
index 10b5c9a1..1d3e9ce0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -39,7 +39,7 @@ dependencies {
 	implementation 'com.fasterxml.jackson.core:jackson-databind'
 	implementation 'org.locationtech.jts.io:jts-io-common:1.20.0'
 	implementation 'org.locationtech.jts:jts-core:1.19.0'
-  //implementation 'org.hibernate:hibernate-spatial:6.2.7.Final'
+  implementation 'org.hibernate:hibernate-spatial:6.2.7.Final'
 
 	//  QueryDSL JPA
 	implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
diff --git a/src/main/java/com/kamco/cd/kamcoback/changedetection/dto/ChangeDetectionDto.java b/src/main/java/com/kamco/cd/kamcoback/changedetection/dto/ChangeDetectionDto.java
index 4d237536..fa71e98b 100644
--- a/src/main/java/com/kamco/cd/kamcoback/changedetection/dto/ChangeDetectionDto.java
+++ b/src/main/java/com/kamco/cd/kamcoback/changedetection/dto/ChangeDetectionDto.java
@@ -1,6 +1,5 @@
 package com.kamco.cd.kamcoback.changedetection.dto;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
@@ -53,7 +52,7 @@ public class ChangeDetectionDto {
   public static class CogUrlDto {
     private String beforeCogUrl;
     private String afterCogUrl;
-    private JsonNode bbox;
+    private Geometry bbox;
   }
 
   @Schema(name = "AnalYearList", description = "년도(차수) 목록")
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/core/ChangeDetectionCoreService.java b/src/main/java/com/kamco/cd/kamcoback/postgres/core/ChangeDetectionCoreService.java
index adc3fb27..56290b7a 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/core/ChangeDetectionCoreService.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/core/ChangeDetectionCoreService.java
@@ -56,16 +56,6 @@ public class ChangeDetectionCoreService {
   }
 
   public ChangeDetectionDto.CogUrlDto getChangeDetectionCogUrl(ChangeDetectionDto.CogUrlReq req) {
-    ObjectMapper mapper = new ObjectMapper();
-    ChangeDetectionDto.CogUrlDto resultDto =
-        changeDetectionRepository.getChangeDetectionCogUrl(req);
-
-    try {
-      JsonNode geomNode = mapper.readTree(resultDto.getBbox().toString());
-      resultDto.setBbox(geomNode);
-    } catch (Exception e) {
-      throw new RuntimeException("Failed to parse geom JSON", e);
-    }
     return changeDetectionRepository.getChangeDetectionCogUrl(req);
   }
 
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/repository/changedetection/ChangeDetectionRepositoryImpl.java b/src/main/java/com/kamco/cd/kamcoback/postgres/repository/changedetection/ChangeDetectionRepositoryImpl.java
index 6b40b85e..ce53dfe7 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/repository/changedetection/ChangeDetectionRepositoryImpl.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/repository/changedetection/ChangeDetectionRepositoryImpl.java
@@ -7,19 +7,14 @@ import static com.kamco.cd.kamcoback.postgres.entity.QMapSheetAnalDataGeomEntity
 import static com.kamco.cd.kamcoback.postgres.entity.QMapSheetAnalEntity.mapSheetAnalEntity;
 import static com.kamco.cd.kamcoback.postgres.entity.QMapSheetAnalSttcEntity.mapSheetAnalSttcEntity;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.kamco.cd.kamcoback.changedetection.dto.ChangeDetectionDto;
 import com.kamco.cd.kamcoback.postgres.entity.MapSheetAnalDataGeomEntity;
-import com.querydsl.core.Tuple;
 import com.querydsl.core.types.Projections;
 import com.querydsl.core.types.dsl.CaseBuilder;
 import com.querydsl.core.types.dsl.Expressions;
 import com.querydsl.core.types.dsl.StringExpression;
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import java.util.List;
-import java.util.Objects;
 import org.springframework.data.jpa.repository.support.QuerydslRepositorySupport;
 
 public class ChangeDetectionRepositoryImpl extends QuerydslRepositorySupport
@@ -68,31 +63,24 @@ public class ChangeDetectionRepositoryImpl extends QuerydslRepositorySupport
 
   @Override
   public ChangeDetectionDto.CogUrlDto getChangeDetectionCogUrl(ChangeDetectionDto.CogUrlReq req) {
-    Tuple result =
-        queryFactory
-            .select(
+    return queryFactory
+        .select(
+            Projections.constructor(
+                ChangeDetectionDto.CogUrlDto.class,
                 makeCogUrl(req.getBeforeYear()).max().as("beforeCogUrl"),
                 makeCogUrl(req.getAfterYear()).max().as("afterCogUrl"),
-                Expressions.stringTemplate("ST_AsGeoJSON({0})", mapInkx5kEntity.geom).as("bbox"))
-            .from(imageryEntity)
-            .innerJoin(mapInkx5kEntity)
-            .on(imageryEntity.scene5k.eq(mapInkx5kEntity.mapidcdNo))
-            .where(
-                imageryEntity
-                    .year
-                    .eq(req.getBeforeYear())
-                    .or(imageryEntity.year.eq(req.getAfterYear())),
-                imageryEntity.scene5k.eq(req.getMapSheetNum()))
-            .groupBy(mapInkx5kEntity.geom)
-            .fetchOne();
-
-    // Polygon -> JsonNode 로 변환
-    JsonNode geometryJson =
-        changeGeometryJson(
-            String.valueOf(Objects.requireNonNull(result).get(2, StringExpression.class)));
-
-    return new ChangeDetectionDto.CogUrlDto(
-        result.get(0, String.class), result.get(1, String.class), geometryJson);
+                mapInkx5kEntity.geom.as("bbox")))
+        .from(imageryEntity)
+        .innerJoin(mapInkx5kEntity)
+        .on(imageryEntity.scene5k.eq(mapInkx5kEntity.mapidcdNo))
+        .where(
+            imageryEntity
+                .year
+                .eq(req.getBeforeYear())
+                .or(imageryEntity.year.eq(req.getAfterYear())),
+            imageryEntity.scene5k.eq(req.getMapSheetNum()))
+        .groupBy(mapInkx5kEntity.geom)
+        .fetchOne();
   }
 
   @Override
@@ -119,13 +107,4 @@ public class ChangeDetectionRepositoryImpl extends QuerydslRepositorySupport
                 "{0} || {1}", imageryEntity.cogMiddlePath, imageryEntity.cogFilename))
         .otherwise("");
   }
-
-  private JsonNode changeGeometryJson(String geometry) {
-    ObjectMapper mapper = new ObjectMapper();
-    try {
-      return mapper.readTree(geometry);
-    } catch (JsonProcessingException e) {
-      throw new RuntimeException(e);
-    }
-  }
 }