diff --git a/frontend/src/auth.ts b/frontend/src/auth.ts
index 5400bc1..ce0016e 100644
--- a/frontend/src/auth.ts
+++ b/frontend/src/auth.ts
@@ -56,6 +56,20 @@ async function syncUsername(accessToken: string, username: string): Promise<void
 
 export const { handle, signIn, signOut } = SvelteKitAuth({
 	trustHost: true,
+	cookies: {
+		sessionToken: {
+			name: '__Secure-authjs.session-token',
+			options: { domain: '.synops.no', path: '/', sameSite: 'lax', secure: true, httpOnly: true },
+		},
+		callbackUrl: {
+			name: '__Secure-authjs.callback-url',
+			options: { domain: '.synops.no', path: '/', sameSite: 'lax', secure: true, httpOnly: true },
+		},
+		csrfToken: {
+			name: '__Host-authjs.csrf-token',
+			options: { path: '/', sameSite: 'lax', secure: true, httpOnly: true },
+		},
+	},
 	providers: [
 		{
 			id: 'authentik',