diff --git a/package-lock.json b/package-lock.json
index 53c5601..4f379c6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -70,11 +70,11 @@
       }
     },
     "config": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/config/-/config-3.0.0.tgz",
-      "integrity": "sha512-QMr3BCOcHdgXx8t8cLfBhWtHcIAAMikaxUc2XASuH2A93g9kOIRch7sXFQdSvdMxhQobnctWm2y68YJYRttJlw==",
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/config/-/config-3.3.1.tgz",
+      "integrity": "sha512-+2/KaaaAzdwUBE3jgZON11L1ggLLhpf2FsGrfqYFHZW22ySGv/HqYIXrBwKKvn+XZh1UBUjHwAcrfsSkSygT+Q==",
       "requires": {
-        "json5": "^1.0.1"
+        "json5": "^2.1.1"
       }
     },
     "core-util-is": {
@@ -211,12 +211,9 @@
       "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
     },
     "json5": {
-      "version": "1.0.1",
-      "resolved": "http://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
-      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
-      "requires": {
-        "minimist": "^1.2.0"
-      }
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.2.tgz",
+      "integrity": "sha512-46Tk9JiOL2z7ytNQWFLpj99RZkVgeHf87yGQKsIkaPz1qSH9UczKH1rO7K3wgRselo0tYMUNfecYpm/p1vC7tQ=="
     },
     "jsprim": {
       "version": "1.4.1",
@@ -247,11 +244,6 @@
         "mime-db": "~1.37.0"
       }
     },
-    "minimist": {
-      "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
-    },
     "node-addon-api": {
       "version": "1.6.2",
       "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-1.6.2.tgz",
diff --git a/package.json b/package.json
index 6e1599a..0080ffe 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   },
   "homepage": "https://github.com/pedroarapua/nodejs-etcd#readme",
   "dependencies": {
-    "config": "^3.0.0",
+    "config": "^3.3.1",
     "lodash": "^4.17.11",
     "node-etcd": "^7.0.0"
   }