diff --git a/example/azure-cosmosdb/package-lock.json b/example/azure-cosmosdb/package-lock.json
old mode 100755
new mode 100644
index 49713ed..891868e
--- a/example/azure-cosmosdb/package-lock.json
+++ b/example/azure-cosmosdb/package-lock.json
@@ -52,11 +52,11 @@
       "integrity": "sha1-sqRdpf36ILBJb8N2jMJ8EvqRan0="
     },
     "async": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
-      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
-        "lodash": "4.17.10"
+        "lodash": "^4.17.14"
       }
     },
     "basic-auth": {
@@ -416,9 +416,9 @@
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
     "lodash": {
-      "version": "4.17.10",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
-      "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "longest": {
       "version": "1.0.1",
diff --git a/example/azure-cosmosdb/package.json b/example/azure-cosmosdb/package.json
old mode 100755
new mode 100644
index f56785b..64bf10a
--- a/example/azure-cosmosdb/package.json
+++ b/example/azure-cosmosdb/package.json
@@ -11,7 +11,7 @@
     "email": ""
   },
   "dependencies": {
-    "async": "^2.1.2",
+    "async": "^2.6.4",
     "body-parser": "~1.15.2",
     "cookie-parser": "~1.4.3",
     "debug": "~2.2.0",