diff --git a/packages/form-js-viewer/src/render/components/form-fields/JSFunctionField.js b/packages/form-js-viewer/src/render/components/form-fields/JSFunctionField.js
index b671466c6..225a7daeb 100644
--- a/packages/form-js-viewer/src/render/components/form-fields/JSFunctionField.js
+++ b/packages/form-js-viewer/src/render/components/form-fields/JSFunctionField.js
@@ -1,4 +1,4 @@
-import Sandbox from 'websandbox';
+import Sandbox from '@jetbrains/websandbox';
 import { useCallback, useEffect, useState } from 'preact/hooks';
 import { useExpressionEvaluation, useDeepCompareMemoize, usePrevious } from '../../hooks';
 import { isObject } from 'min-dash';
@@ -67,6 +67,8 @@ export function JSFunctionField(props) {
 
     _sandbox.promise.then((sandboxInstance) => {
       sandboxInstance
+
+        // @ts-ignore
         .run(wrappedUserCode)
         .catch(() => { onChange({ field, value: null }); })
         .then(() => { setSandbox(sandboxInstance); setHasRunLoad(false); });