diff --git a/src/main/java/com/gdschongik/gdsc/domain/order/dao/OrderQueryMethod.java b/src/main/java/com/gdschongik/gdsc/domain/order/dao/OrderQueryMethod.java
index 0af33f5fd..05867f038 100644
--- a/src/main/java/com/gdschongik/gdsc/domain/order/dao/OrderQueryMethod.java
+++ b/src/main/java/com/gdschongik/gdsc/domain/order/dao/OrderQueryMethod.java
@@ -30,7 +30,7 @@ default BooleanExpression eqMember() {
     }
 
     default BooleanExpression eqRecruitmentRound() {
-        return order.recruitmentRoundId.eq(recruitment.id);
+        return order.recruitmentRoundId.eq(recruitmentRound.id);
     }
 
     // TODO: MemberQueryMethod가 interface로 변경된 경우 해당 메서드 제거 및 대체
diff --git a/src/main/java/com/gdschongik/gdsc/global/common/constant/RegexConstant.java b/src/main/java/com/gdschongik/gdsc/global/common/constant/RegexConstant.java
index afc38dc0b..d2bf20ab0 100644
--- a/src/main/java/com/gdschongik/gdsc/global/common/constant/RegexConstant.java
+++ b/src/main/java/com/gdschongik/gdsc/global/common/constant/RegexConstant.java
@@ -9,6 +9,7 @@ public class RegexConstant {
     public static final String DEPARTMENT = "^D[0-9]{3}$";
     public static final String HONGIK_EMAIL = "^[^\\W&=+'-+,<>]+(\\.[^\\W&=+'-+,<>]+)*@g\\.hongik\\.ac\\.kr$";
     public static final String DATETIME = "yyyy-MM-dd'T'HH:mm:ss";
+    public static final String ZONED_DATETIME = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
     public static final String DATE = "yyyy-MM-dd";
     public static final String ACADEMIC_YEAR = "^[0-9]{4}$";
 
diff --git a/src/main/java/com/gdschongik/gdsc/global/config/ObjectMapperConfig.java b/src/main/java/com/gdschongik/gdsc/global/config/ObjectMapperConfig.java
index ce69b3e8a..b4aae9ed9 100644
--- a/src/main/java/com/gdschongik/gdsc/global/config/ObjectMapperConfig.java
+++ b/src/main/java/com/gdschongik/gdsc/global/config/ObjectMapperConfig.java
@@ -2,6 +2,7 @@
 
 import static com.gdschongik.gdsc.global.common.constant.RegexConstant.DATE;
 import static com.gdschongik.gdsc.global.common.constant.RegexConstant.DATETIME;
+import static com.gdschongik.gdsc.global.common.constant.RegexConstant.ZONED_DATETIME;
 
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.core.JsonParser;
@@ -11,11 +12,13 @@
 import com.fasterxml.jackson.databind.JsonSerializer;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializerProvider;
-import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import java.io.IOException;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -25,7 +28,7 @@ public class ObjectMapperConfig {
     @Bean
     public ObjectMapper objectMapper() {
         ObjectMapper mapper = new ObjectMapper();
-        SimpleModule module = new SimpleModule();
+        JavaTimeModule module = new JavaTimeModule();
 
         // LocalDate
         module.addSerializer(LocalDate.class, new LocalDateSerializer());
@@ -39,6 +42,10 @@ public ObjectMapper objectMapper() {
         module.addSerializer(LocalTime.class, new LocalTimeSerializer());
         module.addDeserializer(LocalTime.class, new LocalTimeDeserializer());
 
+        // ZonedDateTime
+        module.addSerializer(ZonedDateTime.class, new ZonedDateTimeSerializer());
+        module.addDeserializer(ZonedDateTime.class, new ZonedDateTimeDeserializer());
+
         mapper.registerModule(module);
         return mapper;
     }
@@ -107,4 +114,23 @@ public LocalTime deserialize(JsonParser jsonParser, DeserializationContext deser
             return LocalTime.of(hour, minute, second, nano);
         }
     }
+
+    public class ZonedDateTimeSerializer extends JsonSerializer<ZonedDateTime> {
+        @Override
+        public void serialize(ZonedDateTime value, JsonGenerator generator, SerializerProvider serializers)
+                throws IOException {
+            generator.writeString(
+                    value.format(DateTimeFormatter.ofPattern(DATETIME).withZone(ZoneId.of("Asia/Seoul"))));
+        }
+    }
+
+    public class ZonedDateTimeDeserializer extends JsonDeserializer<ZonedDateTime> {
+        @Override
+        public ZonedDateTime deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
+                throws IOException {
+            return ZonedDateTime.parse(
+                    jsonParser.getValueAsString(),
+                    DateTimeFormatter.ofPattern(ZONED_DATETIME).withZone(ZoneId.of("Asia/Seoul")));
+        }
+    }
 }