diff --git a/package-lock.json b/package-lock.json
index e4505d7..6ad8bd1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,19 +1,19 @@
 {
   "name": "qiniuclient",
-  "version": "0.5.5",
+  "version": "0.5.6",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "qiniuclient",
-      "version": "0.5.5",
+      "version": "0.5.6",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
         "@electron/remote": "^2.0.1",
         "ali-oss": "^6.16.0",
         "animate.css": "^3.7.2",
-        "aws-sdk": "^2.525.0",
+        "aws-sdk": "^2.814.0",
         "axios": "^0.19.2",
         "cos-nodejs-sdk-v5": "^2.6.2",
         "custom-electron-titlebar": "^3.2.7",
@@ -1710,13 +1710,13 @@
       }
     },
     "node_modules/aws-sdk": {
-      "version": "2.525.0",
-      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.525.0.tgz",
-      "integrity": "sha512-UgigVfY4ayrffOMbybyz3F1bbIpEhuiO4yfYXultBC1LfIhZaFSFWLqzEBnm9srhydJhfLDftkL0WXVJtfJ4ng==",
+      "version": "2.814.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.814.0.tgz",
+      "integrity": "sha512-empd1m/J/MAkL6d9OeRpmg9thobULu0wk4v8W3JToaxGi2TD7PIdvE6yliZKyOVAdJINhBWEBhxR4OUIHhcGbQ==",
       "dependencies": {
-        "buffer": "4.9.1",
+        "buffer": "4.9.2",
         "events": "1.1.1",
-        "ieee754": "1.1.8",
+        "ieee754": "1.1.13",
         "jmespath": "0.15.0",
         "querystring": "0.2.0",
         "sax": "1.2.1",
@@ -1728,11 +1728,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/aws-sdk/node_modules/ieee754": {
-      "version": "1.1.8",
-      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz",
-      "integrity": "sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q="
-    },
     "node_modules/aws-sdk/node_modules/punycode": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.3.2.tgz",
@@ -3661,10 +3656,9 @@
       "dev": true
     },
     "node_modules/buffer": {
-      "version": "4.9.1",
-      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz",
-      "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
-      "deprecated": "This version of 'buffer' is out-of-date. You must update to v4.9.2 or newer",
+      "version": "4.9.2",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
+      "integrity": "sha512-xq+q3SRMOxGivLhBNaUdC64hDTQwejJ+H0T/NB1XMtTVEwNTrfFF3gAxiyW0Bu/xWEGhjVKgUcMhCrUy2+uCWg==",
       "dependencies": {
         "base64-js": "^1.0.2",
         "ieee754": "^1.1.4",
@@ -9512,9 +9506,9 @@
       }
     },
     "node_modules/ieee754": {
-      "version": "1.1.12",
-      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.12.tgz",
-      "integrity": "sha512-GguP+DRY+pJ3soyIiGPTvdiVXjZ+DbXOxGpXn3eMvNW4x4irjqXm4wHKscC+TfxSJ0yw/S1F24tqdMNsMZTiLA=="
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
     },
     "node_modules/iferr": {
       "version": "0.1.5",
@@ -20281,13 +20275,13 @@
       }
     },
     "aws-sdk": {
-      "version": "2.525.0",
-      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.525.0.tgz",
-      "integrity": "sha512-UgigVfY4ayrffOMbybyz3F1bbIpEhuiO4yfYXultBC1LfIhZaFSFWLqzEBnm9srhydJhfLDftkL0WXVJtfJ4ng==",
+      "version": "2.814.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.814.0.tgz",
+      "integrity": "sha512-empd1m/J/MAkL6d9OeRpmg9thobULu0wk4v8W3JToaxGi2TD7PIdvE6yliZKyOVAdJINhBWEBhxR4OUIHhcGbQ==",
       "requires": {
-        "buffer": "4.9.1",
+        "buffer": "4.9.2",
         "events": "1.1.1",
-        "ieee754": "1.1.8",
+        "ieee754": "1.1.13",
         "jmespath": "0.15.0",
         "querystring": "0.2.0",
         "sax": "1.2.1",
@@ -20296,11 +20290,6 @@
         "xml2js": "0.4.19"
       },
       "dependencies": {
-        "ieee754": {
-          "version": "1.1.8",
-          "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz",
-          "integrity": "sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q="
-        },
         "punycode": {
           "version": "1.3.2",
           "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.3.2.tgz",
@@ -22085,9 +22074,9 @@
       }
     },
     "buffer": {
-      "version": "4.9.1",
-      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz",
-      "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
+      "version": "4.9.2",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.2.tgz",
+      "integrity": "sha512-xq+q3SRMOxGivLhBNaUdC64hDTQwejJ+H0T/NB1XMtTVEwNTrfFF3gAxiyW0Bu/xWEGhjVKgUcMhCrUy2+uCWg==",
       "requires": {
         "base64-js": "^1.0.2",
         "ieee754": "^1.1.4",
@@ -26801,9 +26790,9 @@
       }
     },
     "ieee754": {
-      "version": "1.1.12",
-      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.12.tgz",
-      "integrity": "sha512-GguP+DRY+pJ3soyIiGPTvdiVXjZ+DbXOxGpXn3eMvNW4x4irjqXm4wHKscC+TfxSJ0yw/S1F24tqdMNsMZTiLA=="
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
     },
     "iferr": {
       "version": "0.1.5",
diff --git a/package.json b/package.json
index 0b3c8a0..915fa6a 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "@electron/remote": "^2.0.1",
     "ali-oss": "^6.16.0",
     "animate.css": "^3.7.2",
-    "aws-sdk": "^2.525.0",
+    "aws-sdk": "^2.814.0",
     "axios": "^0.19.2",
     "cos-nodejs-sdk-v5": "^2.6.2",
     "custom-electron-titlebar": "^3.2.7",