diff --git a/docker-compose.yml b/docker-compose.yml
index ea65f6b..af63fcb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,6 +2,8 @@ services:
   nginx:
     image: nginx:alpine
     restart: always
+    ports:
+      - "8020:80"
     volumes:
       - "./nginx/default.conf:/etc/nginx/conf.d/default.conf:ro"
     labels:
diff --git a/frontend/components/AgendaSettingsModal.tsx b/frontend/components/AgendaSettingsModal.tsx
index aa00b91..c87b224 100644
--- a/frontend/components/AgendaSettingsModal.tsx
+++ b/frontend/components/AgendaSettingsModal.tsx
@@ -26,7 +26,7 @@ export const AgendaSettingsModal: React.FC<AgendaSettingsModalProps> = ({ isOpen
 
     const fetchGoogleStatus = async () => {
         try {
-            const response = await fetch('http://localhost:3005/api/auth/google/status');
+            const response = await fetch('/api/auth/google/status');
             const data = await response.json();
             setConnectedAccounts(data);
         } catch (error) {
@@ -56,7 +56,7 @@ export const AgendaSettingsModal: React.FC<AgendaSettingsModalProps> = ({ isOpen
     }, [isOpen]);
 
     const copyInviteLink = (dentistId: string) => {
-        const url = `http://localhost:3005/api/auth/google/url?dentistId=${dentistId}`;
+        const url = `/api/auth/google/url?dentistId=${dentistId}`;
         navigator.clipboard.writeText(url);
         toast.success("LINK DE CONVITE COPIADO!");
     };
diff --git a/frontend/components/GoogleConnectButton.tsx b/frontend/components/GoogleConnectButton.tsx
index 77307a9..a56f53b 100644
--- a/frontend/components/GoogleConnectButton.tsx
+++ b/frontend/components/GoogleConnectButton.tsx
@@ -13,7 +13,7 @@ export const GoogleConnectButton: React.FC<GoogleConnectButtonProps> = ({ ownerI
     const handleConnect = async () => {
         setIsLoading(true);
         try {
-            const response = await fetch(`http://localhost:3005/api/auth/google/url?dentistId=${ownerId}`);
+            const response = await fetch(`/api/auth/google/url?dentistId=${ownerId}`);
             const { url } = await response.json();
 
             // Abrir em popup para manter o contexto
@@ -48,7 +48,7 @@ export const GoogleConnectButton: React.FC<GoogleConnectButtonProps> = ({ ownerI
 
         setIsLoading(true);
         try {
-            await fetch(`http://localhost:3005/api/auth/google/${ownerId}`, { method: 'DELETE' });
+            await fetch(`/api/auth/google/${ownerId}`, { method: 'DELETE' });
             if (onStatusChange) onStatusChange();
         } catch (error) {
             console.error('Erro ao desconectar:', error);
diff --git a/frontend/components/Sidebar.tsx b/frontend/components/Sidebar.tsx
index 61a479b..80327fc 100644
--- a/frontend/components/Sidebar.tsx
+++ b/frontend/components/Sidebar.tsx
@@ -22,7 +22,7 @@ export const Sidebar: React.FC<SidebarProps> = ({ activeTab, setActiveTab }) =>
 
   const fetchGoogleStatus = async () => {
     try {
-      const response = await fetch('http://localhost:3005/api/auth/google/status');
+      const response = await fetch('/api/auth/google/status');
       const data = await response.json();
       setConnectedAccounts(data);
     } catch (error) {
diff --git a/frontend/services/backend.ts b/frontend/services/backend.ts
index e1173bb..80259ae 100644
--- a/frontend/services/backend.ts
+++ b/frontend/services/backend.ts
@@ -19,7 +19,7 @@ const enforceUppercase = <T extends object>(data: T): T => {
   return newData;
 };
 
-const API_URL = import.meta.env.VITE_API_URL || 'http://localhost:3005/api';
+const API_URL = import.meta.env.VITE_API_URL || '/api';
 
 // Returns headers always including the JWT token stored after login
 const getAuthHeaders = (): HeadersInit => {
diff --git a/frontend/views/AdminViews.tsx b/frontend/views/AdminViews.tsx
index f4e1eeb..5b57734 100644
--- a/frontend/views/AdminViews.tsx
+++ b/frontend/views/AdminViews.tsx
@@ -107,7 +107,7 @@ export const DentistasView: React.FC = () => {
 
     const fetchGoogleStatus = async () => {
         try {
-            const response = await fetch('http://localhost:3005/api/auth/google/status');
+            const response = await fetch('/api/auth/google/status');
             const data = await response.json();
             setConnectedAccounts(data);
         } catch (error) {
@@ -163,7 +163,7 @@ export const DentistasView: React.FC = () => {
     const handleInviteDentist = async (d: Dentista) => {
         try {
             const activeW = HybridBackend.getActiveWorkspace();
-            const res = await fetch('http://localhost:3005/api/dentistas/magic-link', {
+            const res = await fetch('/api/dentistas/magic-link', {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
                 body: JSON.stringify({ clinicaId: activeW.id, dentistName: d.nome })
diff --git a/frontend/views/ClinicasView.tsx b/frontend/views/ClinicasView.tsx
index eadf8dd..92378e1 100644
--- a/frontend/views/ClinicasView.tsx
+++ b/frontend/views/ClinicasView.tsx
@@ -38,7 +38,7 @@ export const ClinicasView: React.FC = () => {
     const handleUpdateColor = async (workspaceId: string, color: string) => {
         setSavingColor(true);
         try {
-            const res = await fetch(`http://localhost:3005/api/clinicas/${workspaceId}/color`, {
+            const res = await fetch(`/api/clinicas/${workspaceId}/color`, {
                 method: 'PUT',
                 headers: { 'Content-Type': 'application/json' },
                 body: JSON.stringify({ cor: color })
diff --git a/frontend/views/DentistRegisterView.tsx b/frontend/views/DentistRegisterView.tsx
index 9e9df76..4addde4 100644
--- a/frontend/views/DentistRegisterView.tsx
+++ b/frontend/views/DentistRegisterView.tsx
@@ -41,7 +41,7 @@ export const DentistRegisterView: React.FC = () => {
         e.preventDefault();
         setLoading(true);
         try {
-            const res = await fetch('http://localhost:3005/api/dentistas/register', {
+            const res = await fetch('/api/dentistas/register', {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
                 body: JSON.stringify({
diff --git a/frontend/views/MeusTratamentos.tsx b/frontend/views/MeusTratamentos.tsx
index 3c4f324..a34db36 100644
--- a/frontend/views/MeusTratamentos.tsx
+++ b/frontend/views/MeusTratamentos.tsx
@@ -91,7 +91,7 @@ export const MeusTratamentos: React.FC = () => {
             sortOrder
         });
 
-        const res = await fetch(`http://localhost:3002/api/guias?${params}`);
+        const res = await fetch(`/api/guias?${params}`);
         if (!res.ok) throw new Error('Falha ao carregar guias');
         return res.json();
     };