diff --git a/background/package-lock.json b/background/package-lock.json
index 5fb1b75..33d156b 100644
--- a/background/package-lock.json
+++ b/background/package-lock.json
@@ -404,7 +404,7 @@
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-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
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@@ -512,7 +512,7 @@
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-          "resolved": "http://registry.npmjs.org/sdk-base/-/sdk-base-2.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/sdk-base/-/sdk-base-2.0.1.tgz",
           "integrity": "sha1-ukAonovfJy7RHdnql+r5jgNtJMY=",
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@@ -668,11 +668,18 @@
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+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
-        "lodash": "4.17.11"
+        "lodash": "^4.17.14"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
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+        }
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -786,7 +793,7 @@
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-          "resolved": "http://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
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-          "resolved": "http://registry.npmjs.org/utility/-/utility-0.1.11.tgz",
+          "resolved": "https://registry.npmjs.org/utility/-/utility-0.1.11.tgz",
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@@ -3098,7 +3105,7 @@
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-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
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@@ -3365,7 +3372,7 @@
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-          "resolved": "http://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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+          "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
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@@ -4732,7 +4739,8 @@
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@@ -4753,12 +4761,14 @@
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+          "dev": true,
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@@ -4773,17 +4783,20 @@
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+          "dev": true,
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+          "dev": true,
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+          "dev": true,
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@@ -4900,7 +4913,8 @@
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           "version": "2.0.3",
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-          "dev": true
+          "dev": true,
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@@ -4912,6 +4926,7 @@
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@@ -4926,6 +4941,7 @@
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@@ -4933,12 +4949,14 @@
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+          "dev": true,
+          "optional": true
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@@ -4957,6 +4975,7 @@
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@@ -5037,7 +5056,8 @@
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@@ -5049,6 +5069,7 @@
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@@ -5134,7 +5155,8 @@
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@@ -5170,6 +5192,7 @@
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@@ -5189,6 +5212,7 @@
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+          "optional": true
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-      "resolved": "http://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
+      "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
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-      "resolved": "http://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
+      "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
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-      "resolved": "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz",
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-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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@@ -7506,7 +7536,8 @@
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-          "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
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@@ -11033,7 +11066,7 @@
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-          "resolved": "http://registry.npmjs.org/sax/-/sax-0.4.2.tgz",
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           "version": "1.4.0",
-          "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
           "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
           "dev": true,
           "requires": {
@@ -11250,7 +11283,7 @@
         },
         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
         },
@@ -11277,7 +11310,7 @@
         },
         "string-width": {
           "version": "1.0.2",
-          "resolved": "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
diff --git a/background/package.json b/background/package.json
old mode 100755
new mode 100644
index eff45f7..9ec833c
--- a/background/package.json
+++ b/background/package.json
@@ -4,7 +4,7 @@
   "description": " bipu backend",
   "private": true,
   "dependencies": {
-    "async": "^2.6.1",
+    "async": "^2.6.4",
     "egg": "^2.2.1",
     "egg-cors": "^2.0.0",
     "egg-oss": "^1.1.0",