diff --git a/src/components/PeriodPicker.tsx b/src/components/PeriodPicker.tsx
index 615caa8..3442d0e 100644
--- a/src/components/PeriodPicker.tsx
+++ b/src/components/PeriodPicker.tsx
@@ -1,25 +1,25 @@
 import { Select } from 'antd'
 
-export const defaultPeriod = '600'
+export const defaultPeriod = 600
 
 const timePeriodCollection = [
-    { value: '60', label: '1 минута' },
-    { value: '300', label: '5 минут' },
-    { value: '600', label: '10 минут' },
-    { value: '1800', label: '30 минут' },
-    { value: '3600', label: '1 час' },
-    { value: '21600', label: '6 часов' },
-    { value: '43200', label: '12 часов' },
-    { value: '86400', label: '24 часа' }
+    { value: 60, label: '1 минута' },
+    { value: 300, label: '5 минут' },
+    { value: 600, label: '10 минут' },
+    { value: 1800, label: '30 минут' },
+    { value: 3600, label: '1 час' },
+    { value: 21600, label: '6 часов' },
+    { value: 43200, label: '12 часов' },
+    { value: 86400, label: '24 часа' }
 ]
 
-interface PeriodPickerProps {
-    defaultValue?: string
-    onChange?: (value: string, option: any) => void
+type PeriodPickerProps = {
+    defaultValue?: number
+    onChange?: (value: number) => void
 }
 
 export const PeriodPicker = ({ defaultValue = defaultPeriod, onChange }: PeriodPickerProps) => (
-    <Select defaultValue={defaultValue} onChange={onChange}>
+    <Select defaultValue={defaultValue} onChange={(value) => onChange?.(Number(value))}>
         {timePeriodCollection.map(period => (
             <Select.Option key={period.value} value={period.value}>
                 {period.label}