diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index d6f7f7a..be9f2ed 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -1,5 +1,6 @@
 import type { Metadata } from "next";
 import { Geist, Geist_Mono } from "next/font/google";
+import { auth } from "@/auth";
 import { Header } from "@/components/Header";
 import { ThemeProvider } from "@/components/ThemeProvider";
 import { SessionProvider } from "@/components/SessionProvider";
@@ -26,17 +27,18 @@ export const metadata: Metadata = {
   manifest: "/manifest.json",
 };
 
-export default function RootLayout({
+export default async function RootLayout({
   children,
 }: Readonly<{
   children: React.ReactNode;
 }>) {
+  const session = await auth();
   return (
     <html lang="fr" suppressHydrationWarning>
       <body className={`${geistSans.variable} ${geistMono.variable} min-h-screen bg-zinc-100 text-zinc-900 dark:bg-zinc-950 dark:text-zinc-50 antialiased`}>
         <SessionProvider>
           <ThemeProvider>
-            <Header />
+            <Header session={session} />
             <main className="mx-auto max-w-7xl px-4 py-6">{children}</main>
           </ThemeProvider>
         </SessionProvider>
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
index 95b8298..39e6d9d 100644
--- a/src/components/Header.tsx
+++ b/src/components/Header.tsx
@@ -1,12 +1,9 @@
-"use client";
-
 import Link from "next/link";
-import { signOut, useSession } from "next-auth/react";
+import type { Session } from "next-auth";
 import { ThemeToggle } from "./ThemeToggle";
+import { SignOutButton } from "./SignOutButton";
 
-export function Header() {
-  const { data: session, status } = useSession();
-
+export function Header({ session }: { session: Session | null }) {
   return (
     <header className="sticky top-0 z-50 border-b border-zinc-200 bg-white dark:border-zinc-700 dark:bg-zinc-900 shadow-sm dark:shadow-none backdrop-blur-sm">
       <div className="mx-auto flex h-12 max-w-6xl items-center justify-between px-4">
@@ -17,7 +14,7 @@ export function Header() {
           iag-eval
         </Link>
         <nav className="flex items-center gap-6 font-mono text-xs">
-          {status === "authenticated" ? (
+          {session ? (
             <>
               <Link
                 href="/dashboard"
@@ -31,7 +28,7 @@ export function Header() {
               >
                 /new
               </Link>
-              {session?.user?.role === "admin" && (
+              {session.user.role === "admin" && (
                 <Link
                   href="/admin"
                   className="text-zinc-500 hover:text-cyan-600 dark:text-zinc-400 dark:hover:text-cyan-400 transition-colors"
@@ -46,18 +43,9 @@ export function Header() {
                 /paramètres
               </Link>
               <span className="text-zinc-400 dark:text-zinc-500">
-                {session?.user?.email}
+                {session.user.email}
               </span>
-              <button
-                type="button"
-                onClick={async () => {
-                  await signOut({ redirect: false });
-                  window.location.href = "/auth/login";
-                }}
-                className="text-zinc-500 hover:text-red-500 dark:text-zinc-400 dark:hover:text-red-400 transition-colors"
-              >
-                déconnexion
-              </button>
+              <SignOutButton />
             </>
           ) : (
             <Link
diff --git a/src/components/SignOutButton.tsx b/src/components/SignOutButton.tsx
new file mode 100644
index 0000000..237f64c
--- /dev/null
+++ b/src/components/SignOutButton.tsx
@@ -0,0 +1,18 @@
+"use client";
+
+import { signOut } from "next-auth/react";
+
+export function SignOutButton() {
+  return (
+    <button
+      type="button"
+      onClick={async () => {
+        await signOut({ redirect: false });
+        window.location.href = "/auth/login";
+      }}
+      className="text-zinc-500 hover:text-red-500 dark:text-zinc-400 dark:hover:text-red-400 transition-colors"
+    >
+      déconnexion
+    </button>
+  );
+}
