diff --git a/lib/modules/blockchain_process/blockchain.js b/lib/modules/blockchain_process/blockchain.js
index 97b68aae..4397d810 100644
--- a/lib/modules/blockchain_process/blockchain.js
+++ b/lib/modules/blockchain_process/blockchain.js
@@ -343,7 +343,7 @@ Blockchain.prototype.initChainAndGetAddress = function(callback) {
 };
 
 var BlockchainClient = function(blockchainConfig, client, env, onReadyCallback, onExitCallback) {
-  const isDev = !!blockchainConfig.isDev;
+  const isDev = Boolean(blockchainConfig.isDev);
   // TODO add other clients at some point
   if (client === 'geth') {
     return new Blockchain({blockchainConfig, client: GethCommands, env, isDev, onReadyCallback, onExitCallback});
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index c63a3080..4e61aa60 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -11092,14 +11092,6 @@
         }
       }
     },
-    "ws": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.0.0.tgz",
-      "integrity": "sha512-c2UlYcAZp1VS8AORtpq6y4RJIkJ9dQz18W32SpR/qXGfLDZ2jU4y4wKvvZwqbi7U6gxFQTeE+urMbXU/tsDy4w==",
-      "requires": {
-        "async-limiter": "~1.0.0"
-      }
-    },
     "xhr": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",