diff --git a/packages/setters/src/color-setter/index.tsx b/packages/setters/src/color-setter/index.tsx
index aebc21aad..cd6358c61 100644
--- a/packages/setters/src/color-setter/index.tsx
+++ b/packages/setters/src/color-setter/index.tsx
@@ -6,7 +6,7 @@ import './index.scss';
 
 interface Color {
   rgb: any;
-  onChange: function;
+  onChange: () => void;
 }
 
 export interface PluginProps {
@@ -96,4 +96,4 @@ export default class ColorPickerView extends PureComponent<PluginProps> {
       />
     );
   }
-}
\ No newline at end of file
+}