diff --git a/.vscode/settings.json b/.vscode/settings.json
index 6ebc57b1f..71e6bdb8c 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -3,5 +3,6 @@
 	"spellright.language": ["fr", "en"],
 	"spellright.documentTypes": ["yaml", "git-commit", "markdown"],
 	"typescript.tsdk": "node_modules/typescript/lib",
-	"editor.tabSize": 2
+	"editor.tabSize": 2,
+	"eslint.enable": true
 }
diff --git a/mon-entreprise/package.json b/mon-entreprise/package.json
index 57cc2534b..d9ec01e57 100644
--- a/mon-entreprise/package.json
+++ b/mon-entreprise/package.json
@@ -35,7 +35,7 @@
 		"js-yaml": "^3.13.1",
 		"moo": "^0.5.0",
 		"nearley": "^2.19.0",
-		"publicodes": "^1.0.0-beta.2",
+		"publicodes": "^1.0.0-beta.3",
 		"ramda": "^0.27.0",
 		"react": "^16.13.1",
 		"react-color": "^2.14.0",
diff --git a/publicodes/package.json b/publicodes/package.json
index cff9e84eb..495d93541 100644
--- a/publicodes/package.json
+++ b/publicodes/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "publicodes",
-	"version": "1.0.0-beta.2",
+	"version": "1.0.0-beta.3",
 	"description": "A declarative language for encoding public algorithm",
 	"main": "dist/index.js",
 	"types": "dist/types/index.d.ts",
@@ -40,7 +40,7 @@
 	"scripts": {
 		"prepublishOnly": "yarn test && yarn run build",
 		"clean": "rimraf dist node_modules",
-		"prepare": "rimraf dist && yarn run build",
+		"prepare": "yarn run rimraf dist && yarn run build",
 		"build": "tsc && yarn run webpack --config webpack.config.js",
 		"test:file": "yarn mocha-webpack --webpack-config ./webpack.test.js --include test/setupIntl.js",
 		"test": "yarn test:file \"./{,!(node_modules)/**/}!(webpack).test.js\""
diff --git a/publicodes/source/components/Modal.tsx b/publicodes/source/components/Modal.tsx
index 4d87cd798..14f5f1587 100644
--- a/publicodes/source/components/Modal.tsx
+++ b/publicodes/source/components/Modal.tsx
@@ -14,6 +14,9 @@ export default function Modal({
 	...otherProps
 }: ModalProps) {
 	useEffect(() => {
+		if (typeof document === 'undefined') {
+			return
+		}
 		const body = document.getElementsByTagName('body')[0]
 		body.classList.add('no-scroll')
 		return () => {
diff --git a/publicodes/source/components/PublicodeHighlighter.tsx b/publicodes/source/components/PublicodeHighlighter.tsx
index 3f7ac5146..b65f8c5da 100644
--- a/publicodes/source/components/PublicodeHighlighter.tsx
+++ b/publicodes/source/components/PublicodeHighlighter.tsx
@@ -1,24 +1,35 @@
 import React from 'react'
 import emoji from 'react-easy-emoji'
-import { PrismLight as SyntaxHighlighter } from 'react-syntax-highlighter'
-import yaml from 'react-syntax-highlighter/dist/esm/languages/prism/yaml'
-import style from 'react-syntax-highlighter/dist/esm/styles/prism/atom-dark'
 
-SyntaxHighlighter.registerLanguage('yaml', yaml)
+let Component
+if (process.env.NODE_ENV !== 'test') {
+	const yaml = require('react-syntax-highlighter/dist/esm/languages/prism/yaml')
+		.default
+	const style = require('react-syntax-highlighter/dist/esm/styles/prism/atom-dark')
+		.default
+	const SyntaxHighlighter = require('react-syntax-highlighter').PrismLight
 
-export default function PublicodeHighlighter({ source }: { source: string }) {
-	return (
-		<div css="position: relative; margin-bottom: 1rem">
-			<SyntaxHighlighter language="yaml" style={style}>
-				{source}
-			</SyntaxHighlighter>
-			<a
-				href={`https://publi.codes/studio?code=${encodeURIComponent(source)}`}
-				target="_blank"
-				css="position: absolute; bottom: 5px; right: 10px; color: white !important;"
-			>
-				{emoji('⚡')} Lancer le calcul
-			</a>
-		</div>
-	)
+	SyntaxHighlighter.registerLanguage('yaml', yaml)
+
+	Component = function PublicodeHighlighter({ source }: { source: string }) {
+		return (
+			<div css="position: relative; margin-bottom: 1rem">
+				<SyntaxHighlighter language="yaml" style={style}>
+					{source}
+				</SyntaxHighlighter>
+				<a
+					href={`https://publi.codes/studio?code=${encodeURIComponent(source)}`}
+					target="_blank"
+					css="position: absolute; bottom: 5px; right: 10px; color: white !important;"
+				>
+					{emoji('⚡')} Lancer le calcul
+				</a>
+			</div>
+		)
+	}
 }
+
+export default Component ??
+	function() {
+		return null
+	}
diff --git a/publicodes/webpack.test.js b/publicodes/webpack.test.js
index b9862e815..7687b905d 100644
--- a/publicodes/webpack.test.js
+++ b/publicodes/webpack.test.js
@@ -1,4 +1,5 @@
 const { commonLoaders } = require('../webpack/common')
+const { EnvironmentPlugin } = require('webpack')
 
 module.exports = {
 	resolve: {
@@ -17,5 +18,10 @@ module.exports = {
 				use: ['css-loader', 'postcss-loader']
 			}
 		]
-	}
+	},
+	plugins: [
+		new EnvironmentPlugin({
+			NODE_ENV: 'test'
+		})
+	]
 }
diff --git a/yarn.lock b/yarn.lock
index 3cf339d39..f7678f4d3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4690,11 +4690,6 @@ executable@4.1.1:
   dependencies:
     pify "^2.2.0"
 
-exenv@^1.2.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/exenv/-/exenv-1.2.2.tgz#2ae78e85d9894158670b03d47bec1f03bd91bb9d"
-  integrity sha1-KueOhdmJQVhnCwPUe+wfA72Ru50=
-
 exit-hook@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
@@ -9461,7 +9456,7 @@ react-is@^16.12.0, react-is@^16.6.0, react-is@^16.7.0, react-is@^16.8.1, react-i
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
   integrity sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==
 
-react-lifecycles-compat@^3.0.0, react-lifecycles-compat@^3.0.4:
+react-lifecycles-compat@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
   integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
@@ -9487,16 +9482,6 @@ react-markdown@^4.1.0, react-markdown@^4.3.1:
     unist-util-visit "^1.3.0"
     xtend "^4.0.1"
 
-react-modal@^3.11.2:
-  version "3.11.2"
-  resolved "https://registry.yarnpkg.com/react-modal/-/react-modal-3.11.2.tgz#bad911976d4add31aa30dba8a41d11e21c4ac8a4"
-  integrity sha512-o8gvvCOFaG1T7W6JUvsYjRjMVToLZgLIsi5kdhFIQCtHxDkA47LznX62j+l6YQkpXDbvQegsDyxe/+JJsFQN7w==
-  dependencies:
-    exenv "^1.2.0"
-    prop-types "^15.5.10"
-    react-lifecycles-compat "^3.0.0"
-    warning "^4.0.3"
-
 react-monaco-editor@^0.36.0:
   version "0.36.0"
   resolved "https://registry.yarnpkg.com/react-monaco-editor/-/react-monaco-editor-0.36.0.tgz#ac085c14f25fb072514c925596f6a06a711ee078"
@@ -11888,13 +11873,6 @@ walker@^1.0.7, walker@~1.0.5:
   dependencies:
     makeerror "1.0.x"
 
-warning@^4.0.3:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/warning/-/warning-4.0.3.tgz#16e9e077eb8a86d6af7d64aa1e05fd85b4678ca3"
-  integrity sha512-rpJyN222KWIvHJ/F53XSZv0Zl/accqHR8et1kpaMTD/fLCRxtV8iX8czMzY7sVZupTI3zcUTg8eycS2kNF9l6w==
-  dependencies:
-    loose-envify "^1.0.0"
-
 watchpack@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.6.1.tgz#280da0a8718592174010c078c7585a74cd8cd0e2"