diff --git a/package-lock.json b/package-lock.json
index 9e45a63..c7c8596 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -103,6 +103,13 @@
       "integrity": "sha1-1yYl4jRKNlbjo61Pp0n6gymdgv8=",
       "requires": {
         "lodash": "4.17.15"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        }
       }
     },
     "asynckit": {
@@ -886,9 +893,9 @@
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npm.taobao.org/lodash/download/lodash-4.17.15.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Flodash%2Fdownload%2Flodash-4.17.15.tgz",
-      "integrity": "sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg="
+      "version": "4.17.19",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
     },
     "long-timeout": {
       "version": "0.1.1",
@@ -1515,14 +1522,6 @@
       "resolved": "https://registry.npm.taobao.org/statuses/download/statuses-1.5.0.tgz",
       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
     },
-    "string_decoder": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npm.taobao.org/string_decoder/download/string_decoder-1.1.1.tgz?cache=0&sync_timestamp=1565170823020&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fstring_decoder%2Fdownload%2Fstring_decoder-1.1.1.tgz",
-      "integrity": "sha1-nPFhG6YmhdcDCunkujQUnDrwP8g=",
-      "requires": {
-        "safe-buffer": "5.1.2"
-      }
-    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npm.taobao.org/string-width/download/string-width-1.0.2.tgz",
@@ -1533,6 +1532,14 @@
         "strip-ansi": "3.0.1"
       }
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npm.taobao.org/string_decoder/download/string_decoder-1.1.1.tgz?cache=0&sync_timestamp=1565170823020&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fstring_decoder%2Fdownload%2Fstring_decoder-1.1.1.tgz",
+      "integrity": "sha1-nPFhG6YmhdcDCunkujQUnDrwP8g=",
+      "requires": {
+        "safe-buffer": "5.1.2"
+      }
+    },
     "stringstream": {
       "version": "0.0.6",
       "resolved": "https://registry.npm.taobao.org/stringstream/download/stringstream-0.0.6.tgz",
diff --git a/package.json b/package.json
index 0d09a4b..cccf272 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "express": "~4.14.0",
     "formidable": "^1.1.1",
     "jade": "~1.11.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.19",
     "moment": "^2.18.1",
     "morgan": "~1.7.0",
     "node-schedule": "^1.2.1",