diff --git a/package-lock.json b/package-lock.json
index ae6749b8..8916d70c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8166,9 +8166,9 @@
       "dev": true
     },
     "element-ui": {
-      "version": "2.12.0",
-      "resolved": "https://registry.npmjs.org/element-ui/-/element-ui-2.12.0.tgz",
-      "integrity": "sha512-DapyT0PW4i/1ETPHk8K8Qbe8B6hj10+dXsRTrOTFryV9wAs6e9mCxbV65awokyR2/v/KuIHJmqX+mH3wUa4rOQ==",
+      "version": "2.4.11",
+      "resolved": "https://registry.npmjs.org/element-ui/-/element-ui-2.4.11.tgz",
+      "integrity": "sha512-RtgK0t840NAFTajGMWvylzZRSX1EkZ7V4YgAoBxhv4TtkeMscLuk/IdYOzPdlQq6IN0byx1YVBxCX+u4yYkGvw==",
       "requires": {
         "async-validator": "~1.8.1",
         "babel-helper-vue-jsx-merge-props": "^2.0.0",
diff --git a/package.json b/package.json
index 0bcfd0f6..b72e46c0 100644
--- a/package.json
+++ b/package.json
@@ -171,7 +171,7 @@
     "electron-json-storage": "^4.1.5",
     "electron-log": "^2.2.17",
     "electron-window-state": "^5.0.3",
-    "element-ui": "^2.12.0",
+    "element-ui": "2.4.11",
     "emoji-mart-vue": "^2.6.6",
     "emojilib": "^2.4.0",
     "hawk": "^7.0.10",
diff --git a/src/renderer/store/Preferences/Network.ts b/src/renderer/store/Preferences/Network.ts
index 0a4a0e9a..854631c4 100644
--- a/src/renderer/store/Preferences/Network.ts
+++ b/src/renderer/store/Preferences/Network.ts
@@ -122,11 +122,17 @@ const actions: ActionTree<NetworkState, RootState> = {
   updatePassword: ({ commit }, password: string) => {
     commit(MUTATION_TYPES.UPDATE_PASSWORD, password)
   },
-  saveProxyConfig: ({ state }) => {
+  saveProxyConfig: ({ state, dispatch }) => {
     const proxy: Proxy = {
       source: state.source,
       manualProxyConfig: state.proxy
     }
+    ipcRenderer.once('response-update-proxy-config', async () => {
+      dispatch('App/loadProxy', {}, { root: true })
+      // Originally we have to restart all streamings after user change proxy configuration.
+      // But streamings are restart after close preferences.
+      // So we don't have to restart streaming here.
+    })
     ipcRenderer.send('update-proxy-config', proxy)
   }
 }