diff --git a/README.md b/README.md
index c40a29a..ca28fce 100644
--- a/README.md
+++ b/README.md
@@ -15,9 +15,9 @@ Bootstrap and package your project with Angular 9 and Electron 8 (Typescript + S
 
 Currently runs with:
 
-- Angular v9.0.2
-- Electron v8.0.1
-- Electron Builder v22.3.2
+- Angular v9.1.1
+- Electron v8.2.1
+- Electron Builder v22.4.1
 
 With this sample, you can :
 
diff --git a/package.json b/package.json
index f135098..5a374e9 100644
--- a/package.json
+++ b/package.json
@@ -39,54 +39,54 @@
     "lint": "ng lint"
   },
   "devDependencies": {
-    "@angular-builders/custom-webpack": "8.4.1",
-    "@angular-devkit/build-angular": "0.900.3",
+    "@angular-builders/custom-webpack": "9.1.0",
+    "@angular-devkit/build-angular": "0.901.1",
     "@angular-eslint/builder": "0.0.1-alpha.18",
-    "@angular/cli": "9.0.3",
-    "@angular/common": "9.0.2",
-    "@angular/compiler": "9.0.2",
-    "@angular/compiler-cli": "9.0.2",
-    "@angular/core": "9.0.2",
-    "@angular/forms": "9.0.2",
-    "@angular/language-service": "9.0.2",
-    "@angular/platform-browser": "9.0.2",
-    "@angular/platform-browser-dynamic": "9.0.2",
-    "@angular/router": "9.0.2",
-    "@ngx-translate/core": "12.1.1",
+    "@angular/cli": "9.1.1",
+    "@angular/common": "9.1.1",
+    "@angular/compiler": "9.1.1",
+    "@angular/compiler-cli": "9.1.1",
+    "@angular/core": "9.1.1",
+    "@angular/forms": "9.1.1",
+    "@angular/language-service": "9.1.1",
+    "@angular/platform-browser": "9.1.1",
+    "@angular/platform-browser-dynamic": "9.1.1",
+    "@angular/router": "9.1.1",
+    "@ngx-translate/core": "12.1.2",
     "@ngx-translate/http-loader": "4.0.0",
-    "@types/jasmine": "3.5.6",
+    "@types/jasmine": "3.5.10",
     "@types/jasminewd2": "2.0.8",
-    "@types/mocha": "7.0.1",
+    "@types/mocha": "7.0.2",
     "@types/node": "12.11.1",
     "@typescript-eslint/eslint-plugin": "2.20.0",
     "@typescript-eslint/parser": "2.20.0",
     "chai": "4.2.0",
-    "codelyzer": "5.1.2",
+    "codelyzer": "5.2.2",
     "conventional-changelog-cli": "2.0.32",
-    "core-js": "3.1.4",
-    "cross-env": "7.0.0",
-    "electron": "8.0.1",
-    "electron-builder": "22.3.2",
+    "core-js": "3.6.5",
+    "cross-env": "7.0.2",
+    "electron": "8.2.1",
+    "electron-builder": "22.4.1",
     "electron-reload": "1.5.0",
     "eslint": "6.8.0",
     "eslint-plugin-import": "2.20.1",
     "jasmine-core": "3.5.0",
-    "jasmine-spec-reporter": "4.2.1",
-    "karma": "4.4.1",
+    "jasmine-spec-reporter": "5.0.1",
+    "karma": "5.0.1",
     "karma-coverage-istanbul-reporter": "2.1.1",
     "karma-electron": "6.3.0",
     "karma-jasmine": "3.1.1",
-    "karma-jasmine-html-reporter": "1.5.2",
-    "mocha": "7.0.1",
+    "karma-jasmine-html-reporter": "1.5.3",
+    "mocha": "7.1.1",
     "npm-run-all": "4.1.5",
-    "rxjs": "6.5.4",
+    "rxjs": "6.5.5",
     "spectron": "10.0.1",
-    "tslib": "1.10.0",
-    "ts-node": "8.3.0",
-    "typescript": "3.7.5",
-    "wait-on": "4.0.0",
+    "tslib": "1.11.1",
+    "ts-node": "8.8.2",
+    "typescript": "3.8.3",
+    "wait-on": "4.0.2",
     "webdriver-manager": "12.1.7",
-    "zone.js": "0.10.2"
+    "zone.js": "0.10.3"
   },
   "engines": {
     "node": ">=10.13.0"
diff --git a/tsconfig-serve.json b/tsconfig-serve.json
index f9874f4..4aa8545 100644
--- a/tsconfig-serve.json
+++ b/tsconfig-serve.json
@@ -16,7 +16,7 @@
       "dom"
     ]
   },
-  "include": [
+  "files": [
     "main.ts"
   ],
   "exclude": [
diff --git a/tsconfig.json b/tsconfig.json
index b03a019..9129623 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -19,9 +19,12 @@
       "dom"
     ]
   },
+  "files": [
+    "src/main.ts",
+    "src/polyfill.ts"
+  ],
   "include": [
-    "main.ts",
-    "src/**/*"
+    "src/**/*.d.ts"
   ],
   "exclude": [
     "node_modules"