diff --git a/package-lock.json b/package-lock.json
index c6ca68a..bc2429d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "loopback-nodejs-client",
-  "version": "1.5.5",
+  "version": "1.5.6",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "1.5.5",
+      "version": "1.5.6",
       "license": "MIT",
       "dependencies": {
         "debug": "^4.3.4",
@@ -885,9 +885,9 @@
       }
     },
     "node_modules/async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "dev": true,
       "dependencies": {
         "lodash": "^4.17.14"
@@ -7923,7 +7923,6 @@
       "dev": true,
       "inBundle": true,
       "license": "MIT",
-      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -14018,9 +14017,9 @@
       "dev": true
     },
     "async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.14"
@@ -19789,8 +19788,7 @@
         "decamelize": {
           "version": "1.2.0",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "decode-uri-component": {
           "version": "0.2.0",