diff --git a/package-lock.json b/package-lock.json
index 349d4fe..77b152e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "node-quickfix",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -204,9 +204,9 @@
       }
     },
     "dateformat": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-3.0.2.tgz",
-      "integrity": "sha1-mk30v/FYrC80vGN6vbFUcWB+Flk=",
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-4.5.0.tgz",
+      "integrity": "sha512-YkS64mgmj9At0Ua9p3qyqoHqjqkOTV/FGCluRIcrFNbhFmltQGl2x/DFBgpbRRPTNPoyxfzjqgNaGYjMbfnsdg==",
       "dev": true
     },
     "debug": {
diff --git a/package.json b/package.json
index 7599d9a..b097bd1 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "email": "kermen.deol@electronifie.com"
   },
   "devDependencies": {
-    "dateformat": "^3.0.2",
+    "dateformat": "^4.5.0",
     "mocha": "^2.2.5",
     "nan": "^2.8.0",
     "node-gyp": "^3.6.2",