diff --git a/eatery-service/pom.xml b/eatery-service/pom.xml
index c5cddb1..94f324f 100644
--- a/eatery-service/pom.xml
+++ b/eatery-service/pom.xml
@@ -26,6 +26,8 @@
         <quarkus.platform.version>3.32.4</quarkus.platform.version>
         <skipITs>true</skipITs>
         <surefire-plugin.version>3.5.4</surefire-plugin.version>
+        <org.mapstruct.version>1.6.3</org.mapstruct.version>
+        <org.projectlombok.version>1.18.46</org.projectlombok.version>
     </properties>
 
     <dependencyManagement>
@@ -54,9 +56,19 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.46</version>
+            <version>${org.projectlombok.version}</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>io.quarkiverse.mapstruct</groupId>
+            <artifactId>quarkus-mapstruct</artifactId>
+            <version>1.1.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mapstruct</groupId>
+            <artifactId>mapstruct</artifactId>
+            <version>${org.mapstruct.version}</version>
+        </dependency>
         <dependency>
             <groupId>net.datafaker</groupId>
             <artifactId>datafaker</artifactId>
@@ -140,10 +152,15 @@
                 <configuration>
                     <parameters>true</parameters>
                     <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.mapstruct</groupId>
+                            <artifactId>mapstruct-processor</artifactId>
+                            <version>${org.mapstruct.version}</version>
+                        </path>
                         <path>
                             <groupId>org.projectlombok</groupId>
                             <artifactId>lombok</artifactId>
-                            <version>1.18.46</version>
+                            <version>${org.projectlombok.version}</version>
                         </path>
                     </annotationProcessorPaths>
                 </configuration>
diff --git a/eatery-service/src/main/java/com/drinkool/dtos/DtoMapper.java b/eatery-service/src/main/java/com/drinkool/dtos/DtoMapper.java
new file mode 100644
index 0000000..ea734ed
--- /dev/null
+++ b/eatery-service/src/main/java/com/drinkool/dtos/DtoMapper.java
@@ -0,0 +1,18 @@
+package com.drinkool.dtos;
+
+import com.drinkool.entities.MenuItemEntity;
+import org.mapstruct.BeanMapping;
+import org.mapstruct.Mapper;
+import org.mapstruct.MappingTarget;
+import org.mapstruct.NullValuePropertyMappingStrategy;
+
+@Mapper(componentModel = "cdi")
+public interface DtoMapper {
+	@BeanMapping(
+		nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.IGNORE
+	)
+	void updateMenuItemToEntity(
+		UpdateMenuItem input,
+		@MappingTarget MenuItemEntity entity
+	);
+}
diff --git a/eatery-service/src/main/java/com/drinkool/dtos/UpdateMenuItem.java b/eatery-service/src/main/java/com/drinkool/dtos/UpdateMenuItem.java
new file mode 100644
index 0000000..4c95eb1
--- /dev/null
+++ b/eatery-service/src/main/java/com/drinkool/dtos/UpdateMenuItem.java
@@ -0,0 +1,21 @@
+package com.drinkool.dtos;
+
+import com.drinkool.interfaces.EntityInterface;
+import io.quarkus.runtime.annotations.RegisterForReflection;
+import java.util.UUID;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.eclipse.microprofile.graphql.Input;
+
+@Input
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@RegisterForReflection
+public class UpdateMenuItem extends AddMenuItem implements EntityInterface {
+
+	UUID id;
+}
diff --git a/eatery-service/src/main/java/com/drinkool/services/EateryService.java b/eatery-service/src/main/java/com/drinkool/services/EateryService.java
index 26d088a..6dcf5ee 100644
--- a/eatery-service/src/main/java/com/drinkool/services/EateryService.java
+++ b/eatery-service/src/main/java/com/drinkool/services/EateryService.java
@@ -3,6 +3,8 @@ package com.drinkool.services;
 import com.drinkool.InternalValue;
 import com.drinkool.Role;
 import com.drinkool.dtos.AddMenuItem;
+import com.drinkool.dtos.DtoMapper;
+import com.drinkool.dtos.UpdateMenuItem;
 import com.drinkool.dtos.event.ManagerCreate;
 import com.drinkool.entities.EateryEntity;
 import com.drinkool.entities.MenuItemEntity;
@@ -23,6 +25,9 @@ import org.eclipse.microprofile.reactive.messaging.Incoming;
 @GraphQLApi
 public class EateryService {
 
+	@Inject
+	DtoMapper dtoMapper;
+
 	@Inject
 	HttpServerRequest request;
 
@@ -58,6 +63,23 @@ public class EateryService {
 		return item;
 	}
 
+	@Mutation("updateMenuItem")
+	@RolesAllowed(Role.Manager)
+	@Transactional
+	public MenuItemEntity updateMenuItem(
+		@Name("menuItem") UpdateMenuItem menuItem
+	) {
+		MenuItemEntity item = MenuItemEntity.findById(menuItem.getId());
+
+		if (item == null) return null;
+
+		dtoMapper.updateMenuItemToEntity(menuItem, item);
+
+		item.persist();
+
+		return item;
+	}
+
 	@Query("menuItemsByEatery")
 	public List<MenuItemEntity> getMenuItemsByEatery(
 		@Name("eateryId") UUID eateryId
diff --git a/eatery-service/src/test/java/com/drinkool/services/EateryServiceTest.java b/eatery-service/src/test/java/com/drinkool/services/EateryServiceTest.java
index ae16091..ddc4e24 100644
--- a/eatery-service/src/test/java/com/drinkool/services/EateryServiceTest.java
+++ b/eatery-service/src/test/java/com/drinkool/services/EateryServiceTest.java
@@ -271,4 +271,42 @@ public class EateryServiceTest {
 			.statusCode(200)
 			.body("data.menuItemsByEatery", hasSize(0)); // Phải trả về List rỗng như code bạn viết
 	}
+
+	@Test
+	public void testUpdateMenuItem_Success() {
+		String mutation = """
+				mutation updateMenuItem($menuItem: UpdateMenuItemInput!) {
+					updateMenuItem(menuItem: $menuItem) {
+				 		id
+						name
+						price
+					}
+				}
+			""";
+
+		String newValue = "Phở Bò";
+
+		Map<String, Object> menuItemData = new HashMap<>();
+		menuItemData.put("id", lastSavedName);
+		menuItemData.put("name", newValue);
+
+		Map<String, Object> variables = new HashMap<>();
+		variables.put("menuItem", menuItemData);
+
+		Map<String, Object> requestBody = new HashMap<>();
+		requestBody.put("query", mutation);
+		requestBody.put("variables", variables);
+
+		given()
+			.contentType(ContentType.JSON)
+			.header(InternalValue.role, Role.Customer)
+			.header(InternalValue.userId, lastOwnerId)
+			.body(requestBody)
+			.when()
+			.post("/graphql")
+			.then()
+			.body("data.updateMenuItem.name", is(newValue))
+			.body("data.updateMenuItem.id", is(lastSavedId))
+			.statusCode(200);
+	}
 }
diff --git a/lib/pom.xml b/lib/pom.xml
index c85939a..f5d8d22 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -1,8 +1,8 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8" ?>
 <project
-  xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
 >
   <modelVersion>4.0.0</modelVersion>
 
@@ -63,4 +63,4 @@
       <scope>test</scope>
     </dependency>
   </dependencies>
-</project>
\ No newline at end of file
+</project>
diff --git a/lib/src/main/java/com/drinkool/interfaces/EateryInterface.java b/lib/src/main/java/com/drinkool/interfaces/EateryInterface.java
new file mode 100644
index 0000000..2afd36a
--- /dev/null
+++ b/lib/src/main/java/com/drinkool/interfaces/EateryInterface.java
@@ -0,0 +1,12 @@
+package com.drinkool.interfaces;
+
+import java.util.UUID;
+
+public interface EateryInterface {
+	UUID getOwnerId();
+	void setOwnerId(UUID x);
+	String getName();
+	void setName(String x);
+	boolean getIsVerified();
+	void setIsVerified(boolean x);
+}
diff --git a/lib/src/main/java/com/drinkool/interfaces/EntityInterface.java b/lib/src/main/java/com/drinkool/interfaces/EntityInterface.java
new file mode 100644
index 0000000..89f517f
--- /dev/null
+++ b/lib/src/main/java/com/drinkool/interfaces/EntityInterface.java
@@ -0,0 +1,8 @@
+package com.drinkool.interfaces;
+
+import java.util.UUID;
+
+public interface EntityInterface {
+	UUID getId();
+	void setId(UUID x);
+}
diff --git a/lib/src/main/java/com/drinkool/interfaces/MenuItemInterface.java b/lib/src/main/java/com/drinkool/interfaces/MenuItemInterface.java
index 3a38506..d7e53f0 100644
--- a/lib/src/main/java/com/drinkool/interfaces/MenuItemInterface.java
+++ b/lib/src/main/java/com/drinkool/interfaces/MenuItemInterface.java
@@ -3,6 +3,6 @@ package com.drinkool.interfaces;
 public interface MenuItemInterface {
 	String getName();
 	void setName(String x);
-    double getPrice();
-    void setPrice(double x);
+	double getPrice();
+	void setPrice(double x);
 }