diff --git a/plugins/cost-insights/src/utils/history.ts b/plugins/cost-insights/src/utils/history.ts
index 7d45cfdad2..9e13db3c7a 100644
--- a/plugins/cost-insights/src/utils/history.ts
+++ b/plugins/cost-insights/src/utils/history.ts
@@ -23,7 +23,7 @@ import { ConfigContextProps } from '../hooks/useConfig';
 const schema = yup
   .object()
   .shape({
-    group: yup.string(),
+    group: yup.string().nullable(),
     project: yup.string().nullable(),
   })
   .required();