diff --git a/types/avatar.d.ts b/types/avatar.d.ts
index b9c33fe34..2c5ca5bf5 100644
--- a/types/avatar.d.ts
+++ b/types/avatar.d.ts
@@ -31,6 +31,12 @@ export declare class Avatar extends AntdComponent {
    */
   src: string;
 
+  /**
+   * a list of sources to use for different screen resolutions
+   * @type string
+   */
+  srcSet: string;
+
   /**
    * This attribute defines the alternative text describing the image
    * @type string
diff --git a/types/checkbox/checkbox-group.d.ts b/types/checkbox/checkbox-group.d.ts
index d5ac504b1..601ca9d01 100644
--- a/types/checkbox/checkbox-group.d.ts
+++ b/types/checkbox/checkbox-group.d.ts
@@ -19,7 +19,7 @@ export declare class CheckboxGroup extends AntdComponent {
   disabled: boolean;
 
   /**
-   * Specifies options
+   * Specifies options, you can customize `label` with slot = "label" slot-scope = "option"
    * @type Array<string | { label: string, value: string, disabled?: boolean, onChange?: Function }>
    */
   options: Array<
diff --git a/types/date-picker/month-picker.d.ts b/types/date-picker/month-picker.d.ts
index 0f84540ab..0b2b18cbd 100644
--- a/types/date-picker/month-picker.d.ts
+++ b/types/date-picker/month-picker.d.ts
@@ -19,12 +19,12 @@ export declare class MonthPicker extends DatepickerCommon {
   defaultPickerValue: Moment;
 
   /**
-   * to set the date format, refer to moment.js
+   * to set the date format, When an array is provided, all values are used for parsing and first value for display. refer to moment.js
    * @default 'YYYY-MM'
-   * @type string
+   * @type string | string[]
    * @see http://momentjs.com
    */
-  format: string;
+  format: string | string[];
 
   /**
    * Custom month cell content render method by setting a scoped slot
diff --git a/types/drawer.d.ts b/types/drawer.d.ts
index f752ed2a1..223bf96e5 100644
--- a/types/drawer.d.ts
+++ b/types/drawer.d.ts
@@ -66,6 +66,12 @@ export declare class Drawer extends AntdComponent {
    */
   wrapClassName: string;
 
+  /**
+   * The style of the container of the Drawer dialog.
+   * @type object
+   */
+  wrapStyle: object;
+
   /**
    * Width of the Drawer dialog.
    * @default 256
@@ -79,12 +85,6 @@ export declare class Drawer extends AntdComponent {
    */
   height: string | number;
 
-  /**
-   * The class name of the container of the Drawer dialog.
-   * @type string
-   */
-  className: string;
-
   /**
    * The z-index of the Drawer.
    * @default 1000
diff --git a/types/dropdown/dropdown.d.ts b/types/dropdown/dropdown.d.ts
index db7c4a1fb..3872c902d 100644
--- a/types/dropdown/dropdown.d.ts
+++ b/types/dropdown/dropdown.d.ts
@@ -22,6 +22,18 @@ export declare class Dropdown extends AntdComponent {
    */
   overlay: Menu;
 
+  /**
+   * Class name of the dropdown root element
+   * @type string
+   */
+  overlayClassName: string;
+
+  /**
+   * Style of the dropdown root element
+   * @type object
+   */
+  overlayStyle: object;
+
   /**
    * whether the dropdown menu is visible
    * @type boolean