diff --git a/src/GaudiHTTP.IntegrationTests.Client/Shared/HttpbinEndpoints.cs b/src/GaudiHTTP.IntegrationTests.Client/Shared/HttpbinEndpoints.cs
index 3074e39c..3582f2ac 100644
--- a/src/GaudiHTTP.IntegrationTests.Client/Shared/HttpbinEndpoints.cs
+++ b/src/GaudiHTTP.IntegrationTests.Client/Shared/HttpbinEndpoints.cs
@@ -118,7 +118,7 @@ private static async Task HandleSetCookies(HttpContext ctx)
         {
             var sanitizedKey = SanitizeCookieToken(kvp.Key);
             var sanitizedValue = SanitizeCookieToken(kvp.Value.ToString());
-            ctx.Response.Cookies.Append(sanitizedKey, sanitizedValue, new CookieOptions { Path = "/" });
+            ctx.Response.Cookies.Append(sanitizedKey, sanitizedValue, new CookieOptions { Path = "/", Secure = true, HttpOnly = true, SameSite = SameSiteMode.Lax });
         }
         ctx.Response.StatusCode = 302;
         ctx.Response.Redirect("/cookies", permanent: false);