diff --git a/package-lock.json b/package-lock.json
index 2be4db3..a44ffa8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "sparkpost",
-  "version": "2.1.3",
+  "version": "2.1.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -55,6 +55,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -928,22 +929,22 @@
     "handlebars": {
       "version": "4.0.11",
       "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.0.11.tgz",
-      "integrity": "sha1-Ywo13+ApS8KB7a5v/F0yn8eYLcw=",
+      "integrity": "sha512-yrsPfXULrvTP3Aw+zLpett0LUyv2PS/k1jj2UCpYkFElPhMEhspxrCAl4hKGt+vyDjvpxleyYUPF4AMSjCdnhQ==",
       "dev": true,
       "requires": {
-        "async": "1.5.2",
-        "optimist": "0.6.1",
-        "source-map": "0.4.4",
-        "uglify-js": "2.8.29"
+        "async": "^1.4.0",
+        "optimist": "^0.6.1",
+        "source-map": "^0.4.4",
+        "uglify-js": "^2.6"
       },
       "dependencies": {
         "source-map": {
           "version": "0.4.4",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
-          "integrity": "sha1-66T12pwNyZneaAMti092FzZSA2s=",
+          "integrity": "sha512-Y8nIfcb1s/7DcobUz1yOO1GSp7gyL+D9zLHDehT7iRESqGSxjJ448Sg7rvfgsRJCnKLdSl11uGf0s9X80cH0/A==",
           "dev": true,
           "requires": {
-            "amdefine": "1.0.1"
+            "amdefine": ">=0.0.4"
           }
         }
       }
@@ -1052,7 +1053,8 @@
       "version": "1.1.6",
       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "is-extendable": {
       "version": "0.1.1",
@@ -1272,6 +1274,7 @@
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-buffer": "1.1.6"
       }
@@ -1320,7 +1323,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "mime-db": {
       "version": "1.33.0",
@@ -1346,7 +1350,7 @@
     },
     "minimist": {
       "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
       "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
       "dev": true
     },
@@ -1693,7 +1697,8 @@
       "version": "1.6.1",
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "request": {
       "version": "2.87.0",