diff --git a/src/constants.ts b/src/constants.ts
index 8a61022..36f3058 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -2,7 +2,7 @@ import { RoutePaths } from "@tanstack/react-router";
 import { routeTree } from "./routeTree.gen";
 
 export const GITHUB_URL = "https://github.com/bookracy";
-export const DISCORD_URL = "https://discord.gg/6YKQn8Sg";
+export const DISCORD_URL = "https://discord.gg/bookracy";
 export const X_URL = "https://x.com/bookracy";
 
 export const PAGE_TITLES: Partial<Record<RoutePaths<typeof routeTree>, string>> = {
diff --git a/src/stores/settings.ts b/src/stores/settings.ts
index 4b25a64..39475e6 100644
--- a/src/stores/settings.ts
+++ b/src/stores/settings.ts
@@ -13,6 +13,14 @@ interface SettingsStoreState {
   setTheme: (theme: Theme) => void;
 }
 
+const isOldState = (oldState: unknown): oldState is SettingsStoreState => {
+  if (typeof oldState !== "object" || oldState === null) {
+    return false;
+  }
+
+  return "language" in oldState && "backendURL" in oldState && "theme" in oldState;
+};
+
 export const useSettingsStore = create<SettingsStoreState>()(
   persist(
     (set) => ({
@@ -27,6 +35,12 @@ export const useSettingsStore = create<SettingsStoreState>()(
     {
       name: "BR::settings",
       storage: createJSONStorage(() => localStorage),
+      version: 1,
+      migrate(persistedState, version) {
+        if (version === 0 && isOldState(persistedState)) {
+          return { ...persistedState, backendURL: "https://backend.bookracy.ru" };
+        }
+      },
     },
   ),
 );