diff --git a/js/Makefile b/js/Makefile
index 9086796f59..11bada339e 100644
--- a/js/Makefile
+++ b/js/Makefile
@@ -3,6 +3,10 @@ export PATH := $(PWD)/node_modules/.bin:$(PATH)
 
 UNAME_S ?= $(shell uname -s)
 
+author = Berty Technologies <oss@berty.tech>
+contributor = $(shell git config --get user.name) <$(shell git config --get user.email)>
+license = (Apache-2.0 or MIT)
+
 ifeq ($(UNAME_S),Darwin)
 export SHELL = /bin/bash
 npm := /usr/local/bin/npm
@@ -24,15 +28,13 @@ lerna_flags := --reject-cycles --concurrency=8
 lerna_upgrade := $(bin)/upd
 lerna_exec := $(lerna) $(lerna_flags) exec --stream --parallel --scope=$1 --
 
+json := $(bin)/json
+
 eslint := $(bin)/eslint
 
 pkg ?= $(shell find $(PWD)/packages -depth 1 -type d)
 pkg_mod := $(patsubst %, %/node_modules, $(pkg))
-
-include packages/berty-app/Makefile
-include packages/storybook-mobile/Makefile
-include packages/storybook-web/Makefile
-include packages/react-native-core/Makefile
+pkg_desc := $(patsubst %, %/node_modules, $(pkg))
 
 .DEFAULT_GOAL := deps
 
@@ -80,27 +82,36 @@ fclean: fclean
 
 .PHONY: pkg
 pkg: name ?= example
+pkg: export PWD := $(PWD)
 pkg: $(mod)
 	lerna create @berty-tech/$(name) \
 		--access restricted \
 		--private \
-		--license '(Apache-2.0 OR MIT)' \
-		--yes \
+		--license '$(license)' \
+		--yes
+	cd $(PWD)/packages/$(name) \
+		&& $(json) -I -f package.json -e "this.description=''" \
+		&& $(json) -I -f package.json -e "this.author='$(author)'"
 
 .PHONY: rnpkg
 rnpkg: name ?= example
+rnpkg: export PWD := $(PWD)
 rnpkg: $(mod)
-	cd packages && create-react-native-module \
-		--platforms ios,android \
-		--prefix Berty$(shell echo "$(name)" | caser --pascal $(name)) \
-		--package-identifier tech.berty.$(name) \
-		--license '(Apache-2.0 OR MIT)' \
-		--use-cocoapods \
-		--github-account berty \
-		--author-name 'Berty Technologies' \
-		--author-email oss@berty.tech \
-		$(name)
-	rm -f packages/$(name)/README.md
+	cd $(PWD)/packages \
+		&& create-react-native-module \
+			--platforms ios,android \
+			--prefix Berty$(shell echo "$(name)" | caser --pascal $(name)) \
+			--package-identifier tech.berty.$(name) \
+			--license '$(license)' \
+			--use-cocoapods \
+			--github-account berty \
+			$(name)
+	cd $(PWD)/packages/react-native-$(name) \
+		&& rm -rf README.md \
+		&& $(json) -I -f package.json -e "this.name='@berty-tech/$(name)'" \
+		&& $(json) -I -f package.json -e "this.description=''"
+		&& $(json) -I -f package.json -e "this.author='$(author)'" \
+		&& $(json) -I -f package.json -e "this.licenseFilename=undefined" \
 
 .PHONY: lint
 lint: export PWD := $(PWD)
@@ -118,3 +129,9 @@ lint.fix: lint
 .PHONY: lint.watch
 lint.watch: options += --watch
 lint.watch: lint
+
+include packages/berty-app/Makefile
+include packages/storybook-mobile/Makefile
+include packages/storybook-web/Makefile
+include packages/react-native-core/Makefile
+
diff --git a/js/package-lock.json b/js/package-lock.json
index 0321f027ee..de5f9f426a 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -5872,6 +5872,11 @@
       "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
       "dev": true
     },
+    "json": {
+      "version": "9.0.6",
+      "resolved": "https://registry.npmjs.org/json/-/json-9.0.6.tgz",
+      "integrity": "sha1-eXLCpaSKQmeNsnMMfCxO5uTiRYU="
+    },
     "json-buffer": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.0.tgz",
diff --git a/js/package.json b/js/package.json
index 323532fe82..d3d69a291e 100644
--- a/js/package.json
+++ b/js/package.json
@@ -11,11 +11,10 @@
     "type": "git",
     "url": "git+ssh://git@github.com/berty/berty.git"
   },
-  "author": {
-    "username": "berty",
-    "name": "Berty Technologies",
-    "email": "oss@berty.tech"
-  },
+  "author": "Berty Technologies <oss@berty.tech>",
+  "contributors": [
+    "Godefroy Ponsinet <godefroy.ponsinet@outlook.com>"
+  ],
   "license": "(Apache-2.0 OR MIT)",
   "bugs": {
     "url": "https://github.com/berty/berty/issues"
@@ -25,6 +24,7 @@
     "caser": "^0.1.1",
     "create-react-native-module": "^0.10.2",
     "eslint-plugin-jest": "^22.17.0",
+    "json": "^9.0.6",
     "lerna": "^3.16.4",
     "lerna-update-wizard": "^0.16.0",
     "react-native-create-library": "^3.1.2",
diff --git a/js/packages/react-native-core/package.json b/js/packages/react-native-core/package.json
index 5a5181f091..d600fc4f01 100644
--- a/js/packages/react-native-core/package.json
+++ b/js/packages/react-native-core/package.json
@@ -20,7 +20,6 @@
     "email": "staff@berty-tech.tech"
   },
   "license": "(Apache-2.0 OR MIT)",
-  "licenseFilename": "LICENSE",
   "readmeFilename": "README.md",
   "peerDependencies": {
     "react": "^16.8.1",
diff --git a/js/packages/react-native-example/package.json b/js/packages/react-native-example/package.json
index a701fb679f..a806b4d89f 100644
--- a/js/packages/react-native-example/package.json
+++ b/js/packages/react-native-example/package.json
@@ -20,7 +20,6 @@
     "email": "staff@berty-tech.tech"
   },
   "license": "(Apache-2.0 OR MIT)",
-  "licenseFilename": "LICENSE",
   "readmeFilename": "README.md",
   "peerDependencies": {
     "react": "^16.8.1",