diff --git a/jubochat/package-lock.json b/jubochat/package-lock.json
index bcaa908..29227a6 100644
--- a/jubochat/package-lock.json
+++ b/jubochat/package-lock.json
@@ -471,12 +471,12 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.5.4",
-      "resolved": "http://registry.npm.taobao.org/ajv/download/ajv-6.5.4.tgz",
-      "integrity": "sha1-JH1SdBENtlNwa1UPzCt5fKKM/Fk=",
+      "version": "6.12.3",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.3.tgz",
+      "integrity": "sha512-4K0cK3L1hsqk9xIb2z9vs/XU+PGJZ9PNpJRDS9YLzmNdX6jmVPfamLvTJr0aDAusnHyCHO6MjzlkAsgtqp9teA==",
       "dev": true,
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
@@ -6052,9 +6052,9 @@
       "dev": true
     },
     "fast-deep-equal": {
-      "version": "2.0.1",
-      "resolved": "http://registry.npm.taobao.org/fast-deep-equal/download/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
       "dev": true
     },
     "fast-json-stable-stringify": {
@@ -6435,7 +6435,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -6850,7 +6851,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -6906,6 +6908,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6949,12 +6952,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -8753,8 +8758,8 @@
     },
     "json-schema-traverse": {
       "version": "0.4.1",
-      "resolved": "http://registry.npm.taobao.org/json-schema-traverse/download/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha1-afaofZUTq4u4/mO9sJecRI5oRmA=",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
+      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
       "dev": true
     },
     "json-stable-stringify-without-jsonify": {
@@ -11834,8 +11839,8 @@
     },
     "punycode": {
       "version": "2.1.1",
-      "resolved": "http://registry.npm.taobao.org/punycode/download/punycode-2.1.1.tgz",
-      "integrity": "sha1-tYsBCsQMIsVldhbI0sLALHv0eew=",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
       "dev": true
     },
     "q": {
@@ -14673,9 +14678,9 @@
       }
     },
     "uri-js": {
-      "version": "4.2.2",
-      "resolved": "http://registry.npm.taobao.org/uri-js/download/uri-js-4.2.2.tgz",
-      "integrity": "sha1-lMVA4f93KVbiKZUHwBCupsiDjrA=",
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
+      "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
       "dev": true,
       "requires": {
         "punycode": "^2.1.0"
diff --git a/jubochat/package.json b/jubochat/package.json
index 4d9421c..4b41285 100644
--- a/jubochat/package.json
+++ b/jubochat/package.json
@@ -69,7 +69,7 @@
     "vuex": "^3.0.1"
   },
   "devDependencies": {
-    "ajv": "^6.5.0",
+    "ajv": "^6.12.3",
     "babel-core": "^6.26.3",
     "babel-eslint": "^8.2.3",
     "babel-loader": "^7.1.4",