diff --git a/src/hooks/useInstitutions.ts b/src/hooks/useInstitutions.ts
index ba3212a..2191ac0 100644
--- a/src/hooks/useInstitutions.ts
+++ b/src/hooks/useInstitutions.ts
@@ -22,6 +22,6 @@ export const useInstitutions = () => {
 
   return useQuery<Institution[]>(
     ["ui-training", "institutions"],
-    async () => ((await ky("location-units/institutions").json<InstitutionsResponse>())).locinsts,
+    async () => ((await ky.get("location-units/institutions").json<InstitutionsResponse>())).locinsts,
   );
 };
\ No newline at end of file
diff --git a/src/views/MainPage.test.tsx b/src/views/MainPage.test.tsx
index e9ff5e4..45cde97 100644
--- a/src/views/MainPage.test.tsx
+++ b/src/views/MainPage.test.tsx
@@ -1,16 +1,25 @@
-import { getByText, render, screen } from '@folio/jest-config-stripes/testing-library/react';
+import { render, screen } from '@folio/jest-config-stripes/testing-library/react';
+import { QueryClient, QueryClientProvider } from 'react-query';
 import React from 'react';
 import MainPage from './MainPage';
 import userEvent from '@testing-library/user-event'
 import withIntlConfiguration from '../test/util/withIntlConfiguration';
 
+const queryClient = new QueryClient();
+
+// Mock the QueryClientProvider to provide the QueryClient
+jest.mock('react-query', () => ({
+  ...jest.requireActual('react-query'),
+  useQueryClient: () => queryClient,
+}));
+
 describe('Main page', () => {
   it('shows correct text', async () => {
-    render(withIntlConfiguration(<MainPage />));
+    render(withIntlConfiguration(<QueryClientProvider client={queryClient}> <MainPage /></QueryClientProvider>));
 
     expect(screen.getByRole('heading', { name: 'Headline Open side panel' })).toBeVisible();
 
-    await userEvent.click(await screen.findByRole('button'));
+    await userEvent.click(await screen.findByText('Open side panel'));
     expect(screen.getByText('Side panel')).toBeVisible();
   });
 });