diff --git a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.test.ts b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.test.ts
index d059c03bcecb1..0b418df5cc8ee 100644
--- a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.test.ts
+++ b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.test.ts
@@ -291,7 +291,7 @@ describe('ReindexActions', () => {
       } as RequestEvent<T>);
 
     it('returns flat settings', async () => {
-      clusterClient.asCurrentUser.indices.getSettings.mockResolvedValueOnce(
+      clusterClient.asCurrentUser.indices.get.mockResolvedValueOnce(
         asApiResponse({
           myIndex: {
             settings: { 'index.mySetting': '1' },
@@ -306,7 +306,7 @@ describe('ReindexActions', () => {
     });
 
     it('returns null if index does not exist', async () => {
-      clusterClient.asCurrentUser.indices.getSettings.mockResolvedValueOnce(asApiResponse({}));
+      clusterClient.asCurrentUser.indices.get.mockResolvedValueOnce(asApiResponse({}));
       await expect(actions.getFlatSettings('myIndex')).resolves.toBeNull();
     });
   });
diff --git a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.ts b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.ts
index 611ab3c92b72b..653bf8336255b 100644
--- a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.ts
+++ b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.ts
@@ -236,7 +236,7 @@ export const reindexActionsFactory = (
     },
 
     async getFlatSettings(indexName: string) {
-      const { body: flatSettings } = await esClient.indices.getSettings<{
+      const { body: flatSettings } = await esClient.indices.get<{
         [indexName: string]: FlatSettings;
       }>({
         index: indexName,
diff --git a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_service.test.ts b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_service.test.ts
index 8a7033c1594da..e6b60155cbea4 100644
--- a/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_service.test.ts
+++ b/x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_service.test.ts
@@ -829,7 +829,7 @@ describe('reindexService', () => {
       });
 
       it('fails if create index is not acknowledged', async () => {
-        clusterClient.asCurrentUser.indices.getSettings.mockResolvedValueOnce(
+        clusterClient.asCurrentUser.indices.get.mockResolvedValueOnce(
           asApiResponse({ myIndex: settingsMappings })
         );
 
@@ -844,7 +844,7 @@ describe('reindexService', () => {
       });
 
       it('fails if create index fails', async () => {
-        clusterClient.asCurrentUser.indices.getSettings.mockResolvedValueOnce(
+        clusterClient.asCurrentUser.indices.get.mockResolvedValueOnce(
           asApiResponse({ myIndex: settingsMappings })
         );