diff --git a/lama_cleaner/app/src/components/Header/ThemeChanger.tsx b/lama_cleaner/app/src/components/Header/ThemeChanger.tsx
index 17c11c5..25888c6 100644
--- a/lama_cleaner/app/src/components/Header/ThemeChanger.tsx
+++ b/lama_cleaner/app/src/components/Header/ThemeChanger.tsx
@@ -4,21 +4,12 @@ import { SunIcon, MoonIcon } from '@heroicons/react/outline'
 
 export const themeState = atom({
   key: 'themeState',
-  default: 'light',
+  default: 'dark',
 })
 
 export const ThemeChanger = () => {
   const [theme, setTheme] = useRecoilState(themeState)
 
-  useEffect(() => {
-    const darkThemeMq = window.matchMedia('(prefers-color-scheme: dark)')
-    if (darkThemeMq.matches) {
-      setTheme('dark')
-    } else {
-      setTheme('light')
-    }
-  }, [setTheme])
-
   const themeSwitchHandler = () => {
     const newTheme = theme === 'light' ? 'dark' : 'light'
     setTheme(newTheme)