diff --git a/packages/react/src/hooks/my-organization/shared/services/use-member-management-service.ts b/packages/react/src/hooks/my-organization/shared/services/use-member-management-service.ts
index d4a54359..87f4a75f 100644
--- a/packages/react/src/hooks/my-organization/shared/services/use-member-management-service.ts
+++ b/packages/react/src/hooks/my-organization/shared/services/use-member-management-service.ts
@@ -11,13 +11,14 @@ import {
   memberManagementQueryKeys,
   OrganizationDetailsMappers,
 } from '@auth0/universal-components-core';
-import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query';
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import React from 'react';
 
 import { showToast } from '@/components/auth0/shared/toast';
 import { useCoreClient } from '@/hooks/shared/use-core-client';
 import { useErrorHandler } from '@/hooks/shared/use-error-handler';
 import { useTranslator } from '@/hooks/shared/use-translator';
+import { getPreviousDataOption } from '@/lib/utils/tanstack-compat';
 import type { CreateInvitationInput } from '@/types/my-organization/member-management/organization-invitation-table-types';
 import type {
   UseMemberManagementServiceOptions,
@@ -25,6 +26,8 @@ import type {
   MemberManagementSortConfig,
 } from '@/types/my-organization/member-management/organization-member-management-types';
 
+const keepPreviousDataOption = getPreviousDataOption();
+
 const INVITATION_SORT_FIELD_MAP: Record<string, string> = {
   created_at: 'created_at',
 };
@@ -118,7 +121,7 @@ export function useMemberManagementService(
       return { invitations, next };
     },
     enabled: !!coreClient && isInvitationsTabActive && !!invitationParams,
-    placeholderData: keepPreviousData,
+    ...keepPreviousDataOption,
   });
 
   const membersQuery = useQuery({
@@ -137,7 +140,7 @@ export function useMemberManagementService(
       return { members, next };
     },
     enabled: !!coreClient && !isInvitationsTabActive && !!memberParams,
-    placeholderData: keepPreviousData,
+    ...keepPreviousDataOption,
   });
 
   const organizationQuery = useQuery({
diff --git a/packages/react/src/hooks/my-organization/use-member-detail.ts b/packages/react/src/hooks/my-organization/use-member-detail.ts
index 4c1aed7f..7f4d4ad9 100644
--- a/packages/react/src/hooks/my-organization/use-member-detail.ts
+++ b/packages/react/src/hooks/my-organization/use-member-detail.ts
@@ -7,6 +7,7 @@ import type { Role } from '@auth0/universal-components-core';
 import * as React from 'react';
 
 import { useMemberDetailService } from '@/hooks/my-organization/shared/services/use-member-detail-service';
+import { isMutationLoading } from '@/lib/utils/tanstack-compat';
 import type {
   MemberDetailModalState,
   MemberDetailTab,
@@ -124,10 +125,10 @@ export function useOrganizationMemberDetail(
     isFetchingMemberRoles: memberRolesQuery.isLoading,
     isFetchingAvailableRoles: rolesQuery.isLoading || rolesQuery.isFetching,
     isLoading: memberQuery.isLoading,
-    isRemovingFromOrg: removeFromOrgMutation.isPending,
-    isAssigningRoles: assignRolesMutation.isPending,
-    isRemovingRoles: removeRolesMutation.isPending,
-    removingRoleIds: removeRolesMutation.isPending ? removingRoles.map((r) => r.id) : [],
+    isRemovingFromOrg: isMutationLoading(removeFromOrgMutation),
+    isAssigningRoles: isMutationLoading(assignRolesMutation),
+    isRemovingRoles: isMutationLoading(removeRolesMutation),
+    removingRoleIds: isMutationLoading(removeRolesMutation) ? removingRoles.map((r) => r.id) : [],
     modalState,
 
     setActiveTab,
diff --git a/packages/react/src/hooks/my-organization/use-organization-member-management.ts b/packages/react/src/hooks/my-organization/use-organization-member-management.ts
index e0d37293..256023d5 100644
--- a/packages/react/src/hooks/my-organization/use-organization-member-management.ts
+++ b/packages/react/src/hooks/my-organization/use-organization-member-management.ts
@@ -10,6 +10,7 @@ import { showToast } from '@/components/auth0/shared/toast';
 import { useMemberManagementService } from '@/hooks/my-organization/shared/services/use-member-management-service';
 import { useCheckpointPagination } from '@/hooks/shared/use-checkpoint-pagination';
 import { useTranslator } from '@/hooks/shared/use-translator';
+import { isMutationLoading } from '@/lib/utils/tanstack-compat';
 import type {
   CreateInvitationInput,
   IdentityProviderOption,
@@ -270,13 +271,13 @@ export function useOrganizationMemberManagement(
     orgDisplayName: orgDisplayName,
     isInitialLoading: invitationsQuery.isLoading || membersQuery.isLoading,
     isFetchingInvitations: invitationsQuery.isFetching,
+    isCreatingInvitation: isMutationLoading(createInvitationMutation),
+    isRevokingInvitation: isMutationLoading(revokeInvitationMutation),
+    isResendingInvitation: isMutationLoading(resendInvitationMutation),
     isFetchingMembers: membersQuery.isFetching,
     isFetchingAvailableRoles: rolesQuery.isLoading || rolesQuery.isFetching,
-    isRemovingFromOrg: removeFromOrgMutation.isPending,
-    isAssigningRoles: assignRolesMutation.isPending,
-    isCreatingInvitation: createInvitationMutation.isPending,
-    isRevokingInvitation: revokeInvitationMutation.isPending,
-    isResendingInvitation: resendInvitationMutation.isPending,
+    isRemovingFromOrg: isMutationLoading(removeFromOrgMutation),
+    isAssigningRoles: isMutationLoading(assignRolesMutation),
     invitationPagination: {
       pageSize: invitationPageSize,
       currentPage: invitationCurrentPage,
diff --git a/packages/react/src/lib/utils/tanstack-compat.ts b/packages/react/src/lib/utils/tanstack-compat.ts
new file mode 100644
index 00000000..b06b2fc7
--- /dev/null
+++ b/packages/react/src/lib/utils/tanstack-compat.ts
@@ -0,0 +1,36 @@
+/**
+ * TanStack Query v4/v5 compatibility utilities.
+ * @module tanstack-compat
+ * @internal
+ */
+
+import type { UseMutationResult } from '@tanstack/react-query';
+import { keepPreviousData } from '@tanstack/react-query';
+
+/**
+ * Returns whether a mutation is in a pending/loading state, compatible with both v4 and v5.
+ * In v5, `isPending` replaces `isLoading` on mutations.
+ * @param mutation - The mutation result object.
+ * @returns `true` if the mutation is pending or loading.
+ */
+export function isMutationLoading<
+  T extends Pick<UseMutationResult, 'isPending'> & { isLoading?: boolean },
+>(mutation: T): boolean {
+  return mutation.isPending ?? mutation.isLoading ?? false;
+}
+
+type PlaceholderDataOption = { placeholderData: typeof keepPreviousData };
+type LegacyKeepPreviousOption = { keepPreviousData: true };
+type PreviousDataOption = PlaceholderDataOption | LegacyKeepPreviousOption;
+
+/**
+ * Returns the correct query option for keeping previous data, compatible with both v4 and v5.
+ * In v5, `keepPreviousData` boolean option was replaced by `placeholderData: keepPreviousData`.
+ * @returns The appropriate option object to spread into a query config.
+ */
+export function getPreviousDataOption(): PreviousDataOption {
+  if (typeof keepPreviousData === 'function') {
+    return { placeholderData: keepPreviousData };
+  }
+  return { keepPreviousData: true };
+}