diff --git a/src/screens/Profile.tsx b/src/screens/Profile.tsx
index 6e59230..510ca10 100644
--- a/src/screens/Profile.tsx
+++ b/src/screens/Profile.tsx
@@ -7,6 +7,8 @@ import * as yup from 'yup';
 import { Controller, useForm } from 'react-hook-form';
 import { yupResolver } from '@hookform/resolvers/yup';
 
+import { api } from '@services/api';
+
 import { useAuth } from '@hooks/useAuth';
 
 import { Button } from '@components/Button';
@@ -14,6 +16,7 @@ import { Input } from '@components/Input';
 import { ScreenHeader } from '@components/ScreenHeader';
 import { UserPhoto } from '@components/UserPhoto';
 import { ToastMessage } from '@components/ToastMessage';
+import { AppError } from '@utils/AppError';
 
 type ProfileForm = {
   name: string;
@@ -37,11 +40,16 @@ const profileSchema = yup.object({
     .oneOf([yup.ref('new_password'), null], 'Senhas não coincidem.')
     .when('new_password', {
       is: (field: any) => field,
-      then: yup.string().nullable().required('Senhas não coincidem'),
+      then: yup
+        .string()
+        .nullable()
+        .required('Senhas não coincidem')
+        .transform((value) => (!!value ? value : null)),
     }),
 });
 
 export function Profile() {
+  const [isUpdating, setIsUpdating] = useState(false);
   const [userPhoto, setUserPhoto] = useState('https://i.pravatar.cc/200');
 
   const toast = useToast();
@@ -64,9 +72,41 @@ export function Profile() {
 
   async function handleProfileUpdate(data: ProfileForm) {
     try {
-      console.debug('handleProfileUpdate =>', data);
+      setIsUpdating(true);
+
+      await api.put('/users', {
+        name: data.name,
+        password: data.new_password,
+        old_password: data.old_password,
+      });
+      toast.show({
+        placement: 'top',
+        render: ({ id }) => (
+          <ToastMessage
+            id={id}
+            title="Perfil atualizado com sucesso!"
+            action="success"
+            onClose={() => toast.close(id)}
+          />
+        ),
+      });
     } catch (error) {
-      throw error;
+      const isAppError = error instanceof AppError;
+      const title = isAppError ? error.message : 'Não foi possível atualizar.';
+      toast.show({
+        placement: 'top',
+        render: ({ id }) => (
+          <ToastMessage
+            id={id}
+            title={title}
+            description="Tente novamente mais tarde."
+            action="error"
+            onClose={() => toast.close(id)}
+          />
+        ),
+      });
+    } finally {
+      setIsUpdating(false);
     }
   }
 
@@ -196,7 +236,12 @@ export function Profile() {
               )}
             />
 
-            <Button title="Atualizar" mt={4} onPress={handleSubmit(handleProfileUpdate)} />
+            <Button
+              title="Atualizar"
+              mt={4}
+              onPress={handleSubmit(handleProfileUpdate)}
+              isLoading={isUpdating}
+            />
           </Center>
         </Center>
       </ScrollView>