udpating dotenv

Author: godfreyhobbs

package-lock.json

@@ -50,7 +50,7 @@
     "@material-ui/core": "^1.3.0",
     "axios": "^0.18.0",
     "bcryptjs": "^2.4.3",
-    "dotenv": "^2.0.0",
+    "dotenv": "^6.0.0",
     "es2015": "0.0.0",
     "eth-ecies": "^1.0.3",
     "ethereumjs-util": "^5.2.0",