diff --git a/backend/model/threading/DiskMangerWorker.ts b/backend/model/threading/DiskMangerWorker.ts
index 3ae7fe41..12d550ec 100644
--- a/backend/model/threading/DiskMangerWorker.ts
+++ b/backend/model/threading/DiskMangerWorker.ts
@@ -1,11 +1,10 @@
-///<reference path="../exif.d.ts"/>
 import {DirectoryDTO} from "../../../common/entities/DirectoryDTO";
 import {CameraMetadata, GPSMetadata, ImageSize, PhotoDTO, PhotoMetadata} from "../../../common/entities/PhotoDTO";
 import {Logger} from "../../Logger";
 import * as fs from "fs";
 import * as path from "path";
 import {IptcParser} from "ts-node-iptc";
-import * as exif_parser from "exif-parser";
+import {ExifParserFactory} from "ts-exif-parser";
 import {ProjectPath} from "../../ProjectPath";
 import {Config} from "../../../common/config/private/Config";
 
@@ -51,7 +50,7 @@ export class DiskMangerWorker {
             }
 
             try {
-              const exif = exif_parser.create(data).parse();
+              const exif = ExifParserFactory.create(data).parse();
               metadata.cameraData = <CameraMetadata> {
                 ISO: exif.tags.ISO,
                 model: exif.tags.Model,
diff --git a/common/entities/PhotoDTO.ts b/common/entities/PhotoDTO.ts
index 8c9883a2..70536c1c 100644
--- a/common/entities/PhotoDTO.ts
+++ b/common/entities/PhotoDTO.ts
@@ -43,6 +43,6 @@ export interface PositionMetaData {
 export interface GPSMetadata {
   latitude?: number;
   longitude?: number;
-  altitude?: string;
+  altitude?: number;
 
 }
diff --git a/package.json b/package.json
index 536ceb13..e7877d8e 100644
--- a/package.json
+++ b/package.json
@@ -29,12 +29,12 @@
     "body-parser": "1.17.2",
     "cookie-session": "^2.0.0-beta.2",
     "ejs": "2.5.6",
-    "exif-parser": "^0.1.11",
     "express": "4.15.3",
     "flat-file-db": "1.0.0",
     "jimp": "0.2.28",
     "mysql": "2.13.0",
     "reflect-metadata": "0.1.10",
+    "ts-exif-parser": "^0.1.23",
     "ts-node-iptc": "^1.0.8",
     "typeconfig": "1.0.4",
     "typeorm": "0.0.11",