diff --git a/web/src/reducers/index.ts b/web/src/reducers/index.ts
index 7d31b597..4038a2ce 100644
--- a/web/src/reducers/index.ts
+++ b/web/src/reducers/index.ts
@@ -1,4 +1,6 @@
 import { combineReducers } from 'redux';
+import { persistReducer } from 'redux-persist';
+import storage from 'redux-persist/lib/storage';
 import { connectRouter } from 'connected-react-router';
 import type { History } from 'history';
 
@@ -7,12 +9,24 @@ import login from './login';
 import sentences from './sentences';
 import settings from './settings';
 
+const languagesPersistConfig = {
+  key: 'languages',
+  storage,
+  blacklist: ['allLanguages', 'languages'],
+};
+
+const sentencesPersistConfig = {
+  key: 'sentences',
+  storage,
+  blacklist: ['sentences'],
+};
+
 export default function (history: History) {
   return combineReducers({
     router: connectRouter(history),
-    languages,
+    languages: persistReducer(languagesPersistConfig, languages),
     login,
-    sentences,
+    sentences: persistReducer(sentencesPersistConfig, sentences),
     settings,
   });
 }
diff --git a/web/src/store.tsx b/web/src/store.tsx
index 5d98118b..d34087c6 100644
--- a/web/src/store.tsx
+++ b/web/src/store.tsx
@@ -15,6 +15,7 @@ const ROOT_KEY = 'redux';
 const persistConfig = {
   key: ROOT_KEY,
   storage,
+  blacklist: ['router', 'languages', 'sentences'], // languages and sentences have their own config!
 };
 
 function getStore(history: History) {