diff --git a/src/api/types.ts b/src/api/types.ts
index c990c42b6..a72878fae 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -15778,7 +15778,7 @@ export interface ClusterAllocationExplainDiskUsage {
 }
 
 export interface ClusterAllocationExplainNodeAllocationExplanation {
-  deciders: ClusterAllocationExplainAllocationDecision[]
+  deciders?: ClusterAllocationExplainAllocationDecision[]
   node_attributes: Record<string, string>
   node_decision: ClusterAllocationExplainDecision
   node_id: Id
@@ -15786,7 +15786,7 @@ export interface ClusterAllocationExplainNodeAllocationExplanation {
   roles: NodeRoles
   store?: ClusterAllocationExplainAllocationStore
   transport_address: TransportAddress
-  weight_ranking: integer
+  weight_ranking?: integer
 }
 
 export interface ClusterAllocationExplainNodeDiskUsage {