diff --git a/app/api/auth/[...nextauth]/route.ts b/app/api/auth/[...nextauth]/route.ts
index 80fddd0e..df46d5cf 100644
--- a/app/api/auth/[...nextauth]/route.ts
+++ b/app/api/auth/[...nextauth]/route.ts
@@ -1,7 +1,7 @@
 import NextAuth, { NextAuthOptions } from "next-auth";
 import KeycloakProvider from "next-auth/providers/keycloak";
 import { prisma } from '@/lib/prisma';
-import { ExtendedJWT, ExtendedSession, ServiceToken, invalidateServiceTokens } from '@/lib/session';
+import { ExtendedJWT, ExtendedSession, ServiceToken, invalidateServiceTokens, clearAllCookies } from '@/lib/session';
 import { Session } from "next-auth";
 
 declare module "next-auth" {
@@ -55,7 +55,7 @@ export const authOptions: NextAuthOptions = {
   ],
   session: {
     strategy: "jwt",
-    maxAge: 24 * 60 * 60, // 1 day
+    maxAge: 8 * 60 * 60, // 8 hours
   },
   cookies: {
     sessionToken: {
@@ -67,7 +67,7 @@ export const authOptions: NextAuthOptions = {
         sameSite: 'lax',
         path: '/',
         secure: process.env.NODE_ENV === 'production',
-        maxAge: 24 * 60 * 60 // 1 day
+        maxAge: 8 * 60 * 60 // 8 hours
       }
     },
     callbackUrl: {
@@ -79,7 +79,7 @@ export const authOptions: NextAuthOptions = {
         sameSite: 'lax',
         path: '/',
         secure: process.env.NODE_ENV === 'production',
-        maxAge: 24 * 60 * 60 // 1 day
+        maxAge: 8 * 60 * 60 // 8 hours
       }
     },
     csrfToken: {
@@ -91,7 +91,7 @@ export const authOptions: NextAuthOptions = {
         sameSite: 'lax',
         path: '/',
         secure: process.env.NODE_ENV === 'production',
-        maxAge: 24 * 60 * 60 // 1 day
+        maxAge: 8 * 60 * 60 // 8 hours
       }
     }
   },
@@ -177,14 +177,20 @@ export const authOptions: NextAuthOptions = {
           accessToken: extendedToken.accessToken ?? '',
           refreshToken: extendedToken.refreshToken,
           serviceTokens: extendedToken.serviceTokens ?? {},
-          expires: new Date(Date.now() + 24 * 60 * 60 * 1000).toISOString(),
+          expires: new Date(Date.now()).toISOString(), // Expire immediately
         } as ExtendedSession);
+
+        // Force clear all cookies on signout
+        if (typeof window !== 'undefined') {
+          clearAllCookies();
+        }
       }
     }
   },
   pages: {
     signIn: '/signin',
     error: '/signin',
+    signOut: '/signin', // Redirect to signin after signout
   },
   debug: process.env.NODE_ENV === 'development',
 };
diff --git a/app/signout/page.tsx b/app/signout/page.tsx
new file mode 100644
index 00000000..5ece52c6
--- /dev/null
+++ b/app/signout/page.tsx
@@ -0,0 +1,10 @@
+import { SignOutHandler } from "@/components/auth/signout-handler";
+
+export default function SignOut() {
+  return (
+    <div className="min-h-screen flex items-center justify-center">
+      <SignOutHandler />
+      <p>Déconnexion en cours...</p>
+    </div>
+  );
+} 
\ No newline at end of file
diff --git a/components/auth/signout-handler.tsx b/components/auth/signout-handler.tsx
new file mode 100644
index 00000000..da840e64
--- /dev/null
+++ b/components/auth/signout-handler.tsx
@@ -0,0 +1,24 @@
+"use client";
+
+import { useEffect } from "react";
+import { signOut } from "next-auth/react";
+import { clearAllCookies } from "@/lib/session";
+
+export function SignOutHandler() {
+  useEffect(() => {
+    const handleSignOut = async () => {
+      // Clear all cookies first
+      clearAllCookies();
+      
+      // Then sign out from NextAuth
+      await signOut({ 
+        callbackUrl: "/signin",
+        redirect: true 
+      });
+    };
+
+    handleSignOut();
+  }, []);
+
+  return null;
+} 
\ No newline at end of file