diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/file.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/file.event-json.ts
index 70e86442..713a3a18 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/file.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/file.event-json.ts
@@ -29,16 +29,16 @@ export const decodeFileEventJson: EventJsonDecoder<FileEventJson> = (
     return {
       statusCode: json.StatusCode,
       errorMessage: json.ErrorMessage,
-      roomSeq: json.RoomID,
+      roomSeq: Number(json.RoomID),
       fileName: json.FileName,
       fileExt: json.FileExt,
       fileType: json.FileType,
       thumbUrl: json.ThumbURL,
-      attachmentSeq: json.AttSEQ,
-      attachmentSize: json.AttSize,
+      attachmentSeq: Number(json.AttSEQ),
+      attachmentSize: Number(json.AttSize),
       attachmentRegDate: json.AttRegDate,
-      imageWidth: json.ImageWidth,
-      imageHeight: json.ImageHeight,
+      imageWidth: Number(json.ImageWidth),
+      imageHeight: Number(json.ImageHeight),
       companyCode: json.CompanyCode,
       voiceTime: json.VoiceTime,
       synappKey: json.SynappKey
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-text.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-text.event-json.ts
index 51ef4859..ffb99041 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-text.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-text.event-json.ts
@@ -19,8 +19,8 @@ export const decodeMassTextEventJson: EventJsonDecoder<MassTextEventJson> = (
     return {
       statusCode: json.StatusCode,
       errorMessage: json.ErrorMessage,
-      roomSeq: json.RoomID,
-      massSeq: json.EventMassSeq,
+      roomSeq: Number(json.RoomID),
+      massSeq: Number(json.EventMassSeq),
       regDate: json.RegDate,
       content: json.Content
     } as MassTextEventJson;
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-translation.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-translation.event-json.ts
index f3298401..1997c307 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-translation.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/mass-translation.event-json.ts
@@ -12,18 +12,18 @@ export interface MassTranslationEventJson {
   translation?: string;
 }
 
-export const decodeMassTranslationEventJson: EventJsonDecoder<
-  MassTranslationEventJson
-> = (message: string) => {
+export const decodeMassTranslationEventJson: EventJsonDecoder<MassTranslationEventJson> = (
+  message: string
+) => {
   try {
     const json = JsonAnalization.receiveAnalization(message);
 
     return {
       statusCode: json.StatusCode,
       errorMessage: json.ErrorMessage,
-      translationSeq: json.EventTransSeq,
+      translationSeq: Number(json.EventTransSeq),
       destLocale: json.DestLocale,
-      roomSeq: json.RoomID,
+      roomSeq: Number(json.RoomID),
       regDate: json.RegDate,
       original: json.Original,
       translation: json.Translation
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
index dc496388..bba03094 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
@@ -21,7 +21,7 @@ export const decodePlanEventJson: EventJsonDecoder<PlanEventJson> = (
   try {
     const json = JsonAnalization.receiveAnalization(message);
     return {
-      planSeq: json.planSeq,
+      planSeq: Number(json.planSeq),
       title: json.title,
       contents: json.contents,
       date: json.date,
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/video-conference.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/video-conference.event-json.ts
index c1c4186a..5aa209e2 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/video-conference.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/video-conference.event-json.ts
@@ -19,7 +19,7 @@ export const decodeVideoConferenceEventJson: EventJsonDecoder<VideoConferenceEve
     const json = JsonAnalization.receiveAnalization(message);
 
     return {
-      conferenceSeq: json.confSeq,
+      conferenceSeq: Number(json.confSeq),
       title: json.title,
       contents: json.contents,
       startDate: json.startDate,