diff --git a/package.json b/package.json
index ff3d9c1..6fe569e 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
     "start": "node index.js"
   },
   "dependencies": {
+    "crypto": "^1.0.1",
     "express": "^4.17.1",
     "fs": "^0.0.1-security",
     "moment": "^2.29.1"