diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..9836a90
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1 @@
+*   @thinkh
diff --git a/package.json b/package.json
index 354ba56..6f864d8 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "phovea_importer",
   "description": "Flexible smart and visual data importer for web based visualization",
   "homepage": "https://github.com/phovea/phovea_importer",
-  "version": "4.1.0",
+  "version": "5.0.0",
   "author": {
     "name": "The Caleydo Team",
     "email": "contact@caleydo.org",
@@ -47,7 +47,7 @@
     "release:minor": "npm version minor && npm publish && git push --follow-tags",
     "release:patch": "npm version patch && npm publish && git push --follow-tags",
     "predist": "npm run build && npm run docs",
-    "dist": "mkdirp dist && cd build && tar cvzf ../dist/phovea_importer.tar.gz *"
+    "dist": "mkdir dist && cd build && tar cvzf ../dist/phovea_importer.tar.gz *"
   },
   "devDependencies": {
     "@types/jasmine": "2.5.47",
@@ -66,33 +66,32 @@
     "karma-junit-reporter": "2.0.0",
     "karma-sourcemap-loader": "0.3.7",
     "karma-webpack": "2.0.3",
-    "node-sass": "^4.12.0",
+    "node-sass": "^4.13.1",
     "null-loader": "0.1.1",
     "raw-loader": "0.5.1",
     "sass-loader": "6.0.7",
     "style-loader": "0.16.1",
     "tslint": "5.9.1",
-    "typedoc": "0.11.1",
-    "typescript": "2.8.1",
+    "tslib": "~1.11.0",
+    "typedoc": "~0.16.10",
+    "typescript": "~3.8.2",
     "url-loader": "0.5.8",
     "webpack": "2.3.3",
     "webpack-dev-server": "2.4.2",
-    "mkdirp": "0.5.1",
     "extract-loader": "0.1.0",
-    "tslib": "1.9.0",
     "cache-loader": "1.2.0",
     "ifdef-loader": "2.0.0",
-    "fork-ts-checker-webpack-plugin": "0.4.1",
+    "fork-ts-checker-webpack-plugin": "0.4.4",
     "thread-loader": "1.1.2",
     "ts-loader": "4.0.1"
   },
   "dependencies": {
     "@types/d3": "~3.5.36",
-    "@types/papaparse": "~4.5.3",
+    "@types/papaparse": "~5.0.3",
     "d3": "~3.5.17",
-    "papaparse": "~4.6.0",
-    "phovea_core": "^3.1.0",
-    "phovea_d3": "^3.1.0",
-    "phovea_ui": "^3.1.0"
+    "papaparse": "~5.1.1",
+    "phovea_core": "^4.0.0",
+    "phovea_d3": "^4.0.0",
+    "phovea_ui": "^4.0.0"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
index ab4451b..3a54054 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,6 +7,7 @@
     "moduleResolution": "node",
     "jsx": "react",
     "experimentalDecorators": true,
+    "downlevelIteration": true, // required as long as target is `es5`
     "lib": [
       "dom",
       "es2015",
diff --git a/webpack.config.js b/webpack.config.js
index 95542e3..7d76873 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -185,7 +185,7 @@ function generateWebpack(options) {
         'process.env.NODE_ENV': JSON.stringify(options.isProduction ? 'production' : 'development'),
         __VERSION__: JSON.stringify(pkg.version),
         __LICENSE__: JSON.stringify(pkg.license),
-        __BUILD_ID__: buildId,
+        __BUILD_ID__: JSON.stringify(buildId),
         __DEBUG__: options.isDev || options.isTest,
         __TEST__: options.isTest,
         __PRODUCTION__: options.isProduction,