diff --git a/package.json b/package.json
index 89fda07..13ebce0 100644
--- a/package.json
+++ b/package.json
@@ -4,8 +4,8 @@
   "version": "0.0.1",
   "description": "the koa website",
   "dependencies": {
+    "highlight.js": "^9.12.0",
     "marked": "^0.3.6",
-    "prismjs": "^1.6.0",
     "pug": "^2.0.0-rc.2",
     "pug-cli": "^1.0.0-alpha6",
     "stdin": "0.0.1"