diff --git a/Wave/Controllers/LanguageController.cs b/Wave/Controllers/LanguageController.cs
index 4ad918b..425c59a 100644
--- a/Wave/Controllers/LanguageController.cs
+++ b/Wave/Controllers/LanguageController.cs
@@ -7,6 +7,7 @@ namespace Wave.Controllers;
 [Route("/language")]
 public class LanguageController : ControllerBase {
     [HttpGet("{culture}")]
+    [ResponseCache(NoStore = true, Location = ResponseCacheLocation.None)]
     public IActionResult SetLanguage(string culture, string returnUrl = "") {
         Response.Cookies.Append(
             CookieRequestCultureProvider.DefaultCookieName,
diff --git a/Wave/Controllers/ThemeController.cs b/Wave/Controllers/ThemeController.cs
index c0138b5..216b46f 100644
--- a/Wave/Controllers/ThemeController.cs
+++ b/Wave/Controllers/ThemeController.cs
@@ -6,12 +6,14 @@ namespace Wave.Controllers;
 [Route("/theme")]
 public class ThemeController : ControllerBase {
     [HttpGet("")]
+    [ResponseCache(NoStore = true, Location = ResponseCacheLocation.None)]
     public IActionResult SetTheme(string returnUrl = "") {
         Response.Cookies.Delete(".Wave.Theme");
         return LocalRedirect(string.IsNullOrWhiteSpace(returnUrl) ? "/" : returnUrl);
     }
     
     [HttpGet("{theme}")]
+    [ResponseCache(NoStore = true, Location = ResponseCacheLocation.None)]
     public IActionResult SetTheme(string? theme, string returnUrl = "") {
         if (theme is null) {
             Response.Cookies.Delete(".Wave.Theme");