diff --git a/package-lock.json b/package-lock.json
index 41da407..048fab9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3567,7 +3567,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3982,7 +3983,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4038,6 +4040,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4081,12 +4084,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -4839,6 +4844,7 @@
       "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-2.0.1.tgz",
       "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-extglob": "^1.0.0"
       }
@@ -11180,9 +11186,9 @@
       "integrity": "sha1-cAcEaNbSl3ylI3suUZyn0Gouo/0="
     },
     "swagger-zoo": {
-      "version": "2.19.2",
-      "resolved": "https://registry.npmjs.org/swagger-zoo/-/swagger-zoo-2.19.2.tgz",
-      "integrity": "sha512-NX+T8WdQnRFWGbIXHjGrqN6/jtUGCcqL006n+TmY3xpl8KUweTVs7UlC6Y6bRlSkZgNSvK9oiRsgV7HJRbMepQ==",
+      "version": "2.20.0",
+      "resolved": "https://registry.npmjs.org/swagger-zoo/-/swagger-zoo-2.20.0.tgz",
+      "integrity": "sha512-ev8TLONzdNXUC1Ws/gC0P79DiM6LnUz3eVmI/pdshFHY4V2S0JFvhCUv7m6n3d7D3prvdwwmWoEyasvPnGKgqg==",
       "dev": true,
       "requires": {
         "glob": "^7.1.2"
diff --git a/package.json b/package.json
index 87d7078..6cc1dff 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "rimraf": "2.6.3",
     "semantic-release": "15.12.4",
     "sinon": "5.0.7",
-    "swagger-zoo": "2.19.2"
+    "swagger-zoo": "2.20.0"
   },
   "keywords": [
     "api",