diff --git a/package.json b/package.json
index 5f5682e..473c808 100644
--- a/package.json
+++ b/package.json
@@ -9,9 +9,6 @@
         "ionic:build": "ionic-app-scripts build",
         "ionic:serve": "ionic-app-scripts serve"
     },
-    "config": {
-        "ionic_webpack": "./config/webpack.config.js"
-    },
     "dependencies": {
         "@angular/common": "4.4.3",
         "@angular/compiler": "4.4.3",
@@ -37,7 +34,7 @@
         "ionicons": "3.0.0",
         "rxjs": "5.4.3",
         "sw-toolbox": "3.6.0",
-        "typeorm": "0.1.0",
+        "typeorm": "0.1.5",
         "zone.js": "0.8.17"
     },
     "devDependencies": {
diff --git a/src/entities/author.ts b/src/entities/author.ts
index 3c7be27..23be3a8 100644
--- a/src/entities/author.ts
+++ b/src/entities/author.ts
@@ -1,5 +1,4 @@
-import {Entity, Column, PrimaryGeneratedColumn, OneToMany} from "typeorm";
-import {Post} from "./post";
+import {Entity, Column, PrimaryGeneratedColumn} from "typeorm";
 
 @Entity('author')
 export class Author {
@@ -12,7 +11,4 @@ export class Author {
 
     @Column({nullable: true})
     birthdate: string;
-
-    @OneToMany(type => Post, post => post.author)
-    posts: Post[];
 }
diff --git a/src/entities/post.ts b/src/entities/post.ts
index fa76259..7e7874c 100644
--- a/src/entities/post.ts
+++ b/src/entities/post.ts
@@ -20,7 +20,7 @@ export class Post {
     @JoinTable()
     categories: Category[];
 
-    @ManyToOne(type => Author, author => author.posts, {
+    @ManyToOne(type => Author, {
       cascadeInsert: true
     })
     author: Author;
diff --git a/tsconfig.json b/tsconfig.json
index e70db4d..af4d056 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,7 +11,7 @@
     "module": "es2015",
     "moduleResolution": "node",
     "sourceMap": true,
-    "target": "es5",
+    "target": "es6",
     "typeRoots": [
       "node_modules/@types"
     ]