diff --git a/package.json b/package.json
index a1a4dfd..274fae4 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "markdown-palettes",
   "description": "Markdown*Palettes: Markdown editor for the modern web.",
-  "version": "0.4.2",
+  "version": "0.4.3",
   "author": "Luogu Dev Team",
   "license": "MIT",
   "module": "src/module.js",
@@ -15,7 +15,7 @@
     "analyze": "cross-env NODE_ENV=development BUNDLE_ANALYZE=true webpack --progress --hide-modules"
   },
   "dependencies": {
-    "@iktakahiro/markdown-it-katex": "^3.0.3",
+    "@luogu-dev/markdown-it-katex": "^0.0.1",
     "babel-runtime": "^6.26.0",
     "font-awesome": "^4.7.0",
     "highlight.js": "^9.9.0",
diff --git a/src/components/DefaultConfig.js b/src/components/DefaultConfig.js
index de953d8..84895d2 100644
--- a/src/components/DefaultConfig.js
+++ b/src/components/DefaultConfig.js
@@ -1,4 +1,4 @@
-import KatexParser from '@iktakahiro/markdown-it-katex'
+import KatexParser from '@luogu-dev/markdown-it-katex'
 import 'katex/dist/katex.css'
 import HighlightjsParser from 'markdown-it-highlightjs'
 import 'highlight.js/styles/tomorrow.css'
diff --git a/src/components/PreviewArea.vue b/src/components/PreviewArea.vue
index fe890a6..b7bcecb 100644
--- a/src/components/PreviewArea.vue
+++ b/src/components/PreviewArea.vue
@@ -36,7 +36,7 @@
         padding: 6px 13px;
     }
 
-    code.mp-code {
+    #mp-preview-content code {
         font-family: Monaco, Menlo, Consolas, "Courier New", monospace;
         font-size: 15px;
     }
diff --git a/yarn.lock b/yarn.lock
index 9820608..bc88e94 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -93,9 +93,9 @@
     lodash "^4.17.5"
     to-fast-properties "^2.0.0"
 
-"@iktakahiro/markdown-it-katex@^3.0.3":
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/@iktakahiro/markdown-it-katex/-/markdown-it-katex-3.0.3.tgz#910287d8365c99ea857c9c45877bd97304296607"
+"@luogu-dev/markdown-it-katex@^0.0.1":
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/@luogu-dev/markdown-it-katex/-/markdown-it-katex-0.0.1.tgz#800d3c5a004af6c005ea797393b35670b5d459f2"
   dependencies:
     katex "^0.9.0"