diff --git a/src/index.tsx b/src/index.tsx
index 4c55804..2d6c090 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -144,10 +144,10 @@ export type DateRangeFilter = {
 };
 
 export type DatetimeRangeAggregationInput = {
-  endDatetime: Scalars["DateTime"]["input"];
+  endDatetime?: InputMaybe<Scalars["DateTime"]["input"]>;
   feature?: Scalars["String"]["input"];
   interval: TimeInterval;
-  startDatetime: Scalars["DateTime"]["input"];
+  startDatetime?: InputMaybe<Scalars["DateTime"]["input"]>;
 };
 
 export type DeployedConfigGql = {
diff --git a/src/schema.gql b/src/schema.gql
index ee70b9b..08638e2 100644
--- a/src/schema.gql
+++ b/src/schema.gql
@@ -96,8 +96,8 @@ input EnumAggregation {
 }
 
 input DatetimeRangeAggregationInput {
-  startDatetime: DateTime!
-  endDatetime: DateTime!
+  startDatetime: DateTime = null
+  endDatetime: DateTime = null
   interval: TimeInterval!
   feature: String! = "created_at"
 }