diff --git a/openAPIDefinition.json b/openAPIDefinition.json
index f9a7fb6..0dafd89 100644
--- a/openAPIDefinition.json
+++ b/openAPIDefinition.json
@@ -5067,6 +5067,9 @@
                     "enable_logical_replication": {
                         "description": "Sets wal_level=logical for all compute endpoints in this project.\nAll active endpoints will be suspended.\nOnce enabled, logical replication cannot be disabled.\n",
                         "type": "boolean"
+                    },
+                    "maintenance_window": {
+                        "$ref": "#/components/schemas/MaintenanceWindow"
                     }
                 }
             },
@@ -5951,6 +5954,32 @@
                     }
                 }
             },
+            "MaintenanceWindow": {
+                "description": "A maintenance window is a time period during which Neon may perform maintenance on the project's infrastructure.\nDuring this time, the project's compute endpoints may be unavailable and existing connections can be \ninterrupted.\n",
+                "type": "object",
+                "required": [
+                    "weekdays",
+                    "start_time",
+                    "end_time"
+                ],
+                "properties": {
+                    "weekdays": {
+                        "description": "A list of weekdays when the maintenance window is active.\nEncoded as ints, where 1 - Monday, and 7 - Sunday.\n",
+                        "type": "array",
+                        "items": {
+                            "type": "integer"
+                        }
+                    },
+                    "start_time": {
+                        "description": "Start time of the maintenance window, in the format of \"HH:MM\". Uses UTC.\n",
+                        "type": "string"
+                    },
+                    "end_time": {
+                        "description": "End time of the maintenance window, in the format of \"HH:MM\". Uses UTC.\n",
+                        "type": "string"
+                    }
+                }
+            },
             "EndpointCreateRequest": {
                 "type": "object",
                 "required": [
diff --git a/sdk.go b/sdk.go
index 8ae1942..a316ca2 100644
--- a/sdk.go
+++ b/sdk.go
@@ -1717,6 +1717,19 @@ type ListSharedProjectsRespObj struct {
 	ProjectsResponse
 }
 
+// MaintenanceWindow A maintenance window is a time period during which Neon may perform maintenance on the project's infrastructure.
+// During this time, the project's compute endpoints may be unavailable and existing connections can be
+// interrupted.
+type MaintenanceWindow struct {
+	// EndTime End time of the maintenance window, in the format of "HH:MM". Uses UTC.
+	EndTime string `json:"end_time"`
+	// StartTime Start time of the maintenance window, in the format of "HH:MM". Uses UTC.
+	StartTime string `json:"start_time"`
+	// Weekdays A list of weekdays when the maintenance window is active.
+	// Encoded as ints, where 1 - Monday, and 7 - Sunday.
+	Weekdays []int `json:"weekdays"`
+}
+
 type Member struct {
 	ID       string     `json:"id"`
 	JoinedAt *time.Time `json:"joined_at,omitempty"`
@@ -2104,8 +2117,9 @@ type ProjectSettingsData struct {
 	// EnableLogicalReplication Sets wal_level=logical for all compute endpoints in this project.
 	// All active endpoints will be suspended.
 	// Once enabled, logical replication cannot be disabled.
-	EnableLogicalReplication *bool         `json:"enable_logical_replication,omitempty"`
-	Quota                    *ProjectQuota `json:"quota,omitempty"`
+	EnableLogicalReplication *bool              `json:"enable_logical_replication,omitempty"`
+	MaintenanceWindow        *MaintenanceWindow `json:"maintenance_window,omitempty"`
+	Quota                    *ProjectQuota      `json:"quota,omitempty"`
 }
 
 type ProjectUpdateRequest struct {