diff --git a/packages/kbn-es-archiver/src/lib/indices/kibana_index.ts b/packages/kbn-es-archiver/src/lib/indices/kibana_index.ts
index a2d96f57ca77e..f234de4327301 100644
--- a/packages/kbn-es-archiver/src/lib/indices/kibana_index.ts
+++ b/packages/kbn-es-archiver/src/lib/indices/kibana_index.ts
@@ -77,7 +77,7 @@ export async function migrateKibanaIndex({
 async function fetchKibanaIndices(client: Client) {
   const kibanaIndices = await client.cat.indices({ index: '.kibana*', format: 'json' });
   const isKibanaIndex = (index: string) =>
-    /^\.kibana(:?_\d*)?$/.test(index) || /^\.kibana_(pre)*\d+\.\d+\.\d+_\d\d\d$/.test(index);
+    /^\.kibana(:?_\d*)?$/.test(index) || /^\.kibana_(pre)*\d+\.\d+\.\d+/.test(index);
   return kibanaIndices.map((x: { index: string }) => x.index).filter(isKibanaIndex);
 }