diff --git a/package.json b/package.json
index ccb6b08..762f1ad 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,8 @@
     "url": "https://github.com/ethereumjs/rlp/issues"
   },
   "dependencies": {
-    "safe-buffer": "^5.1.1"
+    "safe-buffer": "^5.1.1",
+    "bn.js": "^4.11.1"
   },
   "devDependencies": {
     "@ethereumjs/config-nyc": "^1.0.0",
@@ -55,8 +56,7 @@
     "@ethereumjs/config-tslint": "^1.0.0",
     "@types/bn.js": "^4.11.3",
     "@types/mocha": "^5.2.5",
-    "@types/node": "^10.12.2",
-    "bn.js": "^4.11.1",
+    "@types/node": "^10.12.2",    
     "coveralls": "^2.11.4",
     "mocha": "4.1.0",
     "nyc": "^13.1.0",