fix(package): update bignumber.js to version 9.0.0

greenkeeper[bot] · greenkeeper[bot] · commit b81f57abbc53 · 2019-05-27T17:32:23.000Z
Closes #5
diff --git a/package.json b/package.json
@@ -33,7 +33,7 @@
     "tape": "^4.6.3"
   },
   "dependencies": {
-    "bignumber.js": "^4.0.4",
+    "bignumber.js": "^9.0.0",
     "murmurhash3": "^0.4.0"
   }
 }
