diff --git a/package.json b/package.json
index 34fca8a..1d81061 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
   "devDependencies": {
     "assert": "^2.0.0",
     "buffer": "^5.5.0",
+    "crypto-browserify": "^3.12.0",
     "events": "^3.1.0",
     "parcel": "^2.8.3",
     "parcel-namer-without-hash": "^0.0.1",