diff --git a/backend/internal/pkg/oauth/oauth.go b/backend/internal/pkg/oauth/oauth.go
index c5ef3c6e08..358d93f1bf 100644
--- a/backend/internal/pkg/oauth/oauth.go
+++ b/backend/internal/pkg/oauth/oauth.go
@@ -19,7 +19,7 @@ const (
 	ClientID = "9d1c250a-e61b-44d9-88ed-5944d1962f5e"
 
 	// OAuth endpoints
-	AuthorizeURL = "https://claude.ai/oauth/authorize"
+	AuthorizeURL = "https://claude.com/cai/oauth/authorize"
 	TokenURL     = "https://platform.claude.com/v1/oauth/token"
 	RedirectURI  = "https://platform.claude.com/oauth/code/callback"