diff --git a/package.json b/package.json
index f3f3025..ac19d53 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,6 @@
     "crypto": "^1.0.1",
     "express": "^4.16.3",
     "express-session": "^1.15.6",
-    "highlight": "^0.2.4",
-    "highlight.js": "^9.12.0",
     "memory-cache": "^0.2.0",
     "mysql": "^2.16.0",
     "node-pandoc": "^0.3.0",