diff --git a/package.json b/package.json
index f4cd60afb..931a5992d 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
 		"focus-trap-react": "^3.1.2",
 		"fuse.js": "^3.2.1",
 		"i18next": "^10.0.7",
+		"iframe-resizer": "^3.6.1",
 		"marked": "^0.3.17",
 		"nearley": "^2.13.0",
 		"ramda": "^0.25.0",
diff --git a/source/sites/embauche.gouv.fr/entry.js b/source/sites/embauche.gouv.fr/entry.js
index ca9564fa0..30f27216c 100644
--- a/source/sites/embauche.gouv.fr/entry.js
+++ b/source/sites/embauche.gouv.fr/entry.js
@@ -1,3 +1,4 @@
+import 'iframe-resizer'
 import React from 'react'
 import { render } from 'react-dom'
 import App from './App'
diff --git a/source/sites/embauche.gouv.fr/iframe-script.js b/source/sites/embauche.gouv.fr/iframe-script.js
index a6a8371b6..d73ceb033 100644
--- a/source/sites/embauche.gouv.fr/iframe-script.js
+++ b/source/sites/embauche.gouv.fr/iframe-script.js
@@ -1,30 +1,6 @@
-import { forEachObjIndexed } from 'ramda'
 
-function ReplaceWith(Ele) {
-	'use-strict' // For safari, and IE > 10
-	var parent = this.parentNode,
-		i = arguments.length,
-		firstIsNode = +(parent && typeof Ele === 'object')
-	if (!parent) return
-
-	while (i-- > firstIsNode) {
-		if (parent && typeof arguments[i] !== 'object') {
-			arguments[i] = document.createTextNode(arguments[i])
-		}
-		if (!parent && arguments[i].parentNode) {
-			arguments[i].parentNode.removeChild(arguments[i])
-			continue
-		}
-		parent.insertBefore(this.previousSibling, arguments[i])
-	}
-	if (firstIsNode) parent.replaceChild(Ele, this)
-}
-if (!Element.prototype.replaceWith) Element.prototype.replaceWith = ReplaceWith
-if (!CharacterData.prototype.replaceWith)
-	CharacterData.prototype.replaceWith = ReplaceWith
-if (!DocumentType.prototype.replaceWith)
-	DocumentType.prototype.replaceWith = ReplaceWith
 
+import { iframeResizer } from 'iframe-resizer';
 let script = document.getElementById('script-simulateur-embauche'),
 	couleur = script.dataset.couleur,
 	baseUrl =
@@ -40,14 +16,16 @@ const iframeAttributes = {
 	id: 'simulateurEmbauche',
 	src,
 	style:
-		'border: none; width: 100%; display: block; margin: 0 auto; height: 45em',
+		'border: none; width: 100%; display: block; margin: 0 auto',
 	allowfullscreen: true,
 	webkitallowfullscreen: true,
 	mozallowfullscreen: true
 }
-forEachObjIndexed(
-	(value, key) => iframe.setAttribute(key, value),
-	iframeAttributes
-)
-
-script.replaceWith(iframe, null)
+for (var key in iframeAttributes) {
+	iframe.setAttribute(key, iframeAttributes[key])
+}
+iframeResizer({
+	interval: 0,
+	heightCalculationMethod: 'lowestElement'
+}, iframe)
+script.parentNode.insertBefore(iframe, script)
diff --git a/yarn.lock b/yarn.lock
index 8861a9585..f347fe581 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4049,6 +4049,10 @@ iferr@^0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
 
+iframe-resizer@^3.6.1:
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/iframe-resizer/-/iframe-resizer-3.6.1.tgz#d0bc24009df6c94411382aafb040db36852d67d9"
+
 ignore-walk@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"