diff --git a/package-lock.json b/package-lock.json
index cd6fd66..2ec8a07 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,11 @@
       "resolved": "https://registry.npmjs.org/async/-/async-0.1.22.tgz",
       "integrity": "sha1-D8GqoIig4+8Ovi2IMbqw3PiEUGE="
     },
+    "async-limiter": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+    },
     "aws-sign": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/aws-sign/-/aws-sign-0.2.0.tgz",
@@ -126,11 +131,6 @@
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-    "commander": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.1.0.tgz",
-      "integrity": "sha1-0SG7roYNmZKj1Re6lvVliOR8Z4E="
-    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -428,11 +428,6 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
       "integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg="
     },
-    "nan": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-1.0.0.tgz",
-      "integrity": "sha1-riT4hQgY1mL8q1rPfzuVv6oszzg="
-    },
     "nconf": {
       "version": "0.6.9",
       "resolved": "https://registry.npmjs.org/nconf/-/nconf-0.6.9.tgz",
@@ -490,11 +485,6 @@
         "wordwrap": "~0.0.2"
       }
     },
-    "options": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/options/-/options-0.0.6.tgz",
-      "integrity": "sha1-7CLTEoBrtT5zF3Pnza788cZDEo8="
-    },
     "parseurl": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
@@ -541,6 +531,11 @@
         "glob": "^7.0.5"
       }
     },
+    "safe-buffer": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+    },
     "send": {
       "version": "0.16.2",
       "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
@@ -615,16 +610,16 @@
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
       "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
     },
-    "tinycolor": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/tinycolor/-/tinycolor-0.0.1.tgz",
-      "integrity": "sha1-MgtaUtg6u1l42Bo+iH1K77FaYWQ="
-    },
     "tunnel-agent": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.2.0.tgz",
       "integrity": "sha1-aFPCr7GyEJ5FYp5JK9419Fnqaeg="
     },
+    "ultron": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -715,14 +710,13 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "ws": {
-      "version": "0.4.32",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-0.4.32.tgz",
-      "integrity": "sha1-eHphVEFPPJntg8V3IVOyD+sM7DI=",
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.1.tgz",
+      "integrity": "sha512-8A/uRMnQy8KCQsmep1m7Bk+z/+LIkeF7w+TDMLtX1iZm5Hq9HsUDmgFGaW1ACW5Cj0b2Qo7wCvRhYN2ErUVp/A==",
       "requires": {
-        "commander": "~2.1.0",
-        "nan": "~1.0.0",
-        "options": ">=0.0.5",
-        "tinycolor": "0.x"
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
       }
     }
   }
diff --git a/package.json b/package.json
index b6bad66..a33ff0e 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,6 @@
     "finalhandler": "^0.4.1",
     "forever-monitor": "1.1.0",
     "serve-static": "^1.10.2",
-    "ws": "~0.4.25"
+    "ws": "~3.3.1"
   }
 }