diff --git a/js/scripts/postinstall-cleanup.js b/js/scripts/postinstall-cleanup.js
new file mode 100644
index 0000000000..72eb99d5c6
--- /dev/null
+++ b/js/scripts/postinstall-cleanup.js
@@ -0,0 +1,49 @@
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2022 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+const fs = require('fs');
+
+function rmDir(path) {
+    if (fs.rm) {
+        fs.rmSync(path, {recursive: true});
+
+        return;
+    }
+
+    fs.rmdirSync(path, {recursive: true});
+}
+
+// Can't be ignored by IntelliJ IDE, resort to removing.
+rmDir('./node_modules/vis/examples');
+rmDir('./node_modules/vis/lib');
+rmDir('./node_modules/vis/docs');
+fs.unlinkSync('./node_modules/vis/gulpfile.js');
+fs.unlinkSync('./node_modules/vis/index.js');
+fs.unlinkSync('./node_modules/vis/index-graph3d.js');
+fs.unlinkSync('./node_modules/vis/index-network.js');
+fs.unlinkSync('./node_modules/vis/index-timeline-graph2d.js');
diff --git a/package.json b/package.json
index 060ec577a2..80b229ed9e 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
     "build": "grunt",
     "test": "grunt run-tests",
     "test-unit": "grunt run-unit-tests",
-    "test-integration": "grunt run-integration-tests"
+    "test-integration": "grunt run-integration-tests",
+    "postinstall": "node js/scripts/postinstall-cleanup"
   },
   "author": "Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko",
   "license": "GPL-3.0",