diff --git a/src/components/auth/ProtectedRoute.tsx b/src/components/auth/ProtectedRoute.tsx
index 2ed2fdd..3493b6a 100644
--- a/src/components/auth/ProtectedRoute.tsx
+++ b/src/components/auth/ProtectedRoute.tsx
@@ -2,10 +2,11 @@ import React from 'react';
 import { Navigate, useLocation } from 'react-router-dom';
 import { useAuth } from '../../hooks/useAuth';
 import type { AuthContextType } from '../../hooks/useAuth';
+import type { UserRole } from '../../types/supabase';
 
 interface ProtectedRouteProps {
   children: React.ReactNode;
-  allowedRoles?: string[];
+  allowedRoles?: UserRole[];
 }
 
 export function ProtectedRoute({ children, allowedRoles = [] }: ProtectedRouteProps) {
diff --git a/src/components/header/ProfileMenu.tsx b/src/components/header/ProfileMenu.tsx
index 2bad2ad..822c50c 100644
--- a/src/components/header/ProfileMenu.tsx
+++ b/src/components/header/ProfileMenu.tsx
@@ -3,6 +3,7 @@ import { useNavigate } from 'react-router-dom';
 import { LogOut, Settings, LayoutDashboard } from 'lucide-react';
 import { useAuth } from '../../hooks/useAuth';
 import type { AuthContextType } from '../../hooks/useAuth';
+import type { UserRole } from '../../types/supabase';
 
 export function ProfileMenu() {
   const { user, userRole, signOut } = useAuth();
diff --git a/src/hooks/useAuth.tsx b/src/hooks/useAuth.tsx
index b9faafc..45dda11 100644
--- a/src/hooks/useAuth.tsx
+++ b/src/hooks/useAuth.tsx
@@ -1,8 +1,8 @@
 import React from 'react';
 import { useNavigate } from 'react-router-dom';
 import { supabase } from '../lib/supabase';
-import { User, UserMetadata } from '@supabase/supabase-js';
-import { UserMetadata as SupabaseUserMetadata } from '../types/supabase';
+import { User } from '@supabase/supabase-js';
+import { UserMetadata, UserRole } from '../types/supabase';
 
 export interface AuthContextType {
   user: User | null;
@@ -11,7 +11,7 @@ export interface AuthContextType {
   signIn: (email: string, password: string) => Promise<any>;
   signUp: (email: string, password: string) => Promise<any>;
   signOut: () => Promise<void>;
-  userRole: UserMetadata['role'] | null;
+  userRole: UserRole | null;
 }
 
 const AuthContext = React.createContext<AuthContextType | undefined>(undefined);
@@ -19,7 +19,7 @@ const AuthContext = React.createContext<AuthContextType | undefined>(undefined);
 export function AuthProvider({ children }: { children: React.ReactNode }) {
   const navigate = useNavigate();
   const [user, setUser] = React.useState<User | null>(null);
-  const [userRole, setUserRole] = React.useState<UserMetadata['role'] | null>(null);
+  const [userRole, setUserRole] = React.useState<UserRole | null>(null);
   const [loading, setLoading] = React.useState(true);
 
   React.useEffect(() => {
@@ -29,7 +29,7 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
       
       if (session?.user) {
         setUser(session.user);
-        const role = session.user.user_metadata.role;
+        const role = session.user.user_metadata.role as UserMetadata['role'];
         console.log('Role na sessão:', role);
         setUserRole(role);
 
@@ -48,7 +48,7 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
       
       if (session?.user) {
         setUser(session.user);
-        const role = session.user.user_metadata.role;
+        const role = session.user.user_metadata.role as UserMetadata['role'];
         console.log('Role no evento:', role);
         setUserRole(role);
 
@@ -93,7 +93,7 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
   );
 }
 
-export function useAuth() {
+export function useAuth(): AuthContextType {
   const context = React.useContext(AuthContext);
   if (context === undefined) {
     throw new Error('useAuth must be used within an AuthProvider');