diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 35452ce..25dc6cb 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -13,6 +13,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16'
       - run: yarn install
       - run: yarn test:lint
       - run: yarn test:prettier
diff --git a/package.json b/package.json
index e4a9100..75c0346 100644
--- a/package.json
+++ b/package.json
@@ -7,12 +7,12 @@
   "homepage": "https://saasify.sh",
   "license": "MIT",
   "engines": {
-    "node": ">=10"
+    "node": "16.x"
   },
   "scripts": {
     "update-deployment": "saasify get amaurymartiny/reacher@latest -o src/lib/deployment.json",
-    "start": "SKIP_PREFLIGHT_CHECK=true react-app-rewired start",
-    "build": "SKIP_PREFLIGHT_CHECK=true react-app-rewired build",
+    "start": "SKIP_PREFLIGHT_CHECK=true react-app-rewired start --openssl-legacy-provider",
+    "build": "SKIP_PREFLIGHT_CHECK=true react-app-rewired build --openssl-legacy-provider",
     "analyze": "source-map-explorer 'build/static/js/*.js'",
     "test": "run-s test:*",
     "test:lint": "eslint .",
diff --git a/public/index.html b/public/index.html
index 882e72a..2fcf25a 100644
--- a/public/index.html
+++ b/public/index.html
@@ -10,7 +10,7 @@
     <meta name="theme-color" content="#d23d67" />
 
     <script defer src="https://js.stripe.com/v3/"></script>
-    <script defer src="/js/sendinblue.js"></script>
+    <script defer src="/js/crisp.js"></script>
 
     <title>Reacher - Open-Source Email Verification API</title>
   </head>
diff --git a/public/js/crisp.js b/public/js/crisp.js
new file mode 100644
index 0000000..22e1457
--- /dev/null
+++ b/public/js/crisp.js
@@ -0,0 +1,10 @@
+// https://crisp.chat/en/
+window.$crisp = [];
+window.CRISP_WEBSITE_ID = '76583d5a-660c-43a9-9fba-8c65c1cf9d49';
+(function () {
+	d = document;
+	s = d.createElement('script');
+	s.src = 'https://client.crisp.chat/l.js';
+	s.async = 1;
+	d.getElementsByTagName('head')[0].appendChild(s);
+})();
\ No newline at end of file
diff --git a/public/js/sendinblue.js b/public/js/sendinblue.js
deleted file mode 100644
index f9e3627..0000000
--- a/public/js/sendinblue.js
+++ /dev/null
@@ -1,10 +0,0 @@
-(function(d, w, c) {
-    w.SibConversationsID = '6366d410f90cc11a765868a8';
-    w[c] = w[c] || function() {
-        (w[c].q = w[c].q || []).push(arguments);
-    };
-    var s = d.createElement('script');
-    s.async = true;
-    s.src = 'https://conversations-widget.sendinblue.com/sib-conversations.js';
-    if (d.head) d.head.appendChild(s);
-})(document, window, 'SibConversations');
\ No newline at end of file