diff --git a/server/package-lock.json b/server/package-lock.json
index f26472a..d255d17 100644
--- a/server/package-lock.json
+++ b/server/package-lock.json
@@ -277,11 +277,6 @@
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       "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
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-    "decimal.js": {
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-      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-4.0.4.tgz",
-      "integrity": "sha1-rzJJRl4TOYjDB1D3fqr0RQXKpeM="
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@@ -430,11 +425,6 @@
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-      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-3.3.1.tgz",
-      "integrity": "sha1-XWox/wdwcpTyBMy7a1N5Fgd3EIM="
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@@ -631,11 +621,6 @@
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-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
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@@ -677,9 +662,9 @@
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     "lodash": {
-      "version": "4.17.4",
-      "resolved": "http://registry.npm.taobao.org/lodash/download/lodash-4.17.4.tgz",
-      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+      "version": "4.17.19",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
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@@ -698,6 +683,28 @@
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+          "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-9.0.1.tgz",
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+        "fraction.js": {
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+          "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.0.4.tgz",
+          "integrity": "sha512-aK/oGatyYLTtXRHjfEsytX5fieeR5H4s8sLorzcT12taFS+dbMZejnvm9gRa8mZAPwci24ucjq9epDyaq5u8Iw=="
+        },
+        "tiny-emitter": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.0.2.tgz",
+          "integrity": "sha512-2NM0auVBGft5tee/OxP4PI3d8WItkDM+fPnaRAVo6xTDI2knbz9eC5ArWGqtGlYqiH3RU5yMpdyTTO7MguC4ow=="
+        },
+        "typed-function": {
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+          "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-0.10.6.tgz",
+          "integrity": "sha512-PYtsDjxyW3vq7Itn2RMz0cn6CrbybIY6XC2i9c1q1o/H94QW8B1Pf3wSsbBDOCMpN1i5jDRrlDsLXFaqXBpfHQ=="
+        }
       }
     },
     "md5": {
@@ -1009,11 +1016,6 @@
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-    "tiny-emitter": {
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-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-1.2.0.tgz",
-      "integrity": "sha1-bchFBSywjr78GHRyO1jySmSMO28="
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@@ -1023,11 +1025,6 @@
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-      "resolved": "https://registry.npmjs.org/typed-function/-/typed-function-0.10.5.tgz",
-      "integrity": "sha1-Lg8Yq9BlIZ+raUpEamXG0ZgYMsA="
-    },
     "ultron": {
       "version": "1.1.0",
       "resolved": "http://registry.npm.taobao.org/ultron/download/ultron-1.1.0.tgz",