diff --git a/docusaurus.config.ts b/docusaurus.config.ts
index 63d423c..7df5b37 100644
--- a/docusaurus.config.ts
+++ b/docusaurus.config.ts
@@ -46,6 +46,9 @@ const config: Config = {
   ],
 
   themeConfig: {
+    colorMode: {
+      defaultMode: 'dark',
+    },
     navbar: {
       title: "OSUI",
       logo: {