diff --git a/server/package.json b/server/package.json
index f37cf43..d9ef227 100644
--- a/server/package.json
+++ b/server/package.json
@@ -29,7 +29,7 @@
     "mysql2": "^1.4.2",
     "pug": "^2.0.0-rc.1",
     "request": "^2.83.0",
-    "sequelize": "^4.20.1",
+    "sequelize": "^5.15.1",
     "socket.io": "^2.3.0"
   },
   "devDependencies": {
diff --git a/server/yarn.lock b/server/yarn.lock
index c7b890a..7791662 100644
--- a/server/yarn.lock
+++ b/server/yarn.lock
@@ -14,11 +14,6 @@
   dependencies:
     "@types/babel-types" "*"
 
-"@types/geojson@^1.0.0":
-  version "1.0.6"
-  resolved "https://registry.npm.taobao.org/@types/geojson/download/@types/geojson-1.0.6.tgz#3e02972728c69248c2af08d60a48cbb8680fffdf"
-  integrity sha1-PgKXJyjGkkjCrwjWCkjLuGgP/98=
-
 "@types/node@*":
   version "12.11.6"
   resolved "https://registry.npm.taobao.org/@types/node/download/@types/node-12.11.6.tgz?cache=0&sync_timestamp=1571869371794&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Fnode%2Fdownload%2F%40types%2Fnode-12.11.6.tgz#2f8d551aef252de78f42acdccd53f5a8ce0cac4d"
@@ -120,7 +115,7 @@ ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
-any-promise@^1.0.0, any-promise@^1.1.0:
+any-promise@^1.0.0, any-promise@^1.1.0, any-promise@^1.3.0:
   version "1.3.0"
   resolved "https://registry.npm.taobao.org/any-promise/download/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
   integrity sha1-q8av7tzqUugJzcA3au0845Y10X8=
@@ -313,7 +308,7 @@ blob@0.0.5:
   resolved "https://registry.npm.taobao.org/blob/download/blob-0.0.5.tgz#d680eeef25f8cd91ad533f5b01eed48e64caf683"
   integrity sha1-1oDu7yX4zZGtUz9bAe7UjmTK9oM=
 
-bluebird@^3.1.1, bluebird@^3.4.6, bluebird@^3.5.0:
+bluebird@^3.1.1, bluebird@^3.5.0:
   version "3.7.1"
   resolved "https://registry.npm.taobao.org/bluebird/download/bluebird-3.7.1.tgz#df70e302b471d7473489acf26a93d63b53f874de"
   integrity sha1-33DjArRx10c0iazyapPWO1P4dN4=
@@ -705,14 +700,14 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-debug@*, debug@~4.1.0:
+debug@*, debug@^4.1.1, debug@~4.1.0:
   version "4.1.1"
   resolved "https://registry.npm.taobao.org/debug/download/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
   integrity sha1-O3ImAlUQnGtYnO4FDx1RYTlmR5E=
   dependencies:
     ms "^2.1.1"
 
-debug@^2.1.3, debug@^2.2.0, debug@^2.3.3, debug@^2.6.0, debug@^2.6.3, debug@^2.6.9:
+debug@^2.1.3, debug@^2.2.0, debug@^2.3.3, debug@^2.6.0, debug@^2.6.3:
   version "2.6.9"
   resolved "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=
@@ -790,7 +785,7 @@ denque@^1.4.1:
   resolved "https://registry.npm.taobao.org/denque/download/denque-1.4.1.tgz#6744ff7641c148c3f8a69c307e51235c1f4a37cf"
   integrity sha1-Z0T/dkHBSMP4ppwwflEjXB9KN88=
 
-depd@^1.1.0, depd@^1.1.2, depd@~1.1.2:
+depd@^1.1.2, depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.npm.taobao.org/depd/download/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
   integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
@@ -1084,11 +1079,6 @@ generate-function@^2.3.1:
   dependencies:
     is-property "^1.0.2"
 
-generic-pool@3.5.0:
-  version "3.5.0"
-  resolved "https://registry.npm.taobao.org/generic-pool/download/generic-pool-3.5.0.tgz#acac4fd743a175ff20574f380910036464cb61f7"
-  integrity sha1-rKxP10Ohdf8gV084CRADZGTLYfc=
-
 get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.npm.taobao.org/get-stream/download/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
@@ -1908,10 +1898,10 @@ lodash.once@^4.0.0:
   resolved "https://registry.npm.taobao.org/lodash.once/download/lodash.once-4.1.1.tgz#0dd3971213c7c56df880977d504c88fb471a97ac"
   integrity sha1-DdOXEhPHxW34gJd9UEyI+0cal6w=
 
-lodash@^4.17.1, lodash@^4.17.4:
-  version "4.17.15"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg=
+lodash@^4.17.11, lodash@^4.17.4:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
 
 long@^4.0.0:
   version "4.0.0"
@@ -2055,17 +2045,17 @@ mkdirp@^0.5.0, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
-moment-timezone@^0.5.14:
-  version "0.5.27"
-  resolved "https://registry.npm.taobao.org/moment-timezone/download/moment-timezone-0.5.27.tgz?cache=0&sync_timestamp=1571207551387&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fmoment-timezone%2Fdownload%2Fmoment-timezone-0.5.27.tgz#73adec8139b6fe30452e78f210f27b1f346b8877"
-  integrity sha1-c63sgTm2/jBFLnjyEPJ7HzRriHc=
+moment-timezone@^0.5.14, moment-timezone@^0.5.21:
+  version "0.5.31"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.31.tgz#9c40d8c5026f0c7ab46eda3d63e49c155148de05"
+  integrity sha512-+GgHNg8xRhMXfEbv81iDtrVeTcWt0kWmTEY1XQK14dICTXnWJnT0dxdlPspwqF3keKMVPXwayEsk1DI0AA/jdA==
   dependencies:
     moment ">= 2.9.0"
 
-"moment@>= 2.9.0", moment@^2.19.1, moment@^2.20.0:
-  version "2.24.0"
-  resolved "https://registry.npm.taobao.org/moment/download/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
-  integrity sha1-DQVdU/UFKqZTyfbraLtdEr9cK1s=
+"moment@>= 2.9.0", moment@^2.19.1, moment@^2.24.0:
+  version "2.27.0"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.27.0.tgz#8bff4e3e26a236220dfe3e36de756b6ebaa0105d"
+  integrity sha512-al0MUK7cpIcglMv3YF13qSgdAIqxHTO7brRtaz3DlSULbqfazqkc5kEjNrLDOM7fsjshoFIihnU8snrP7zUvhQ==
 
 ms@2.0.0:
   version "2.0.0"
@@ -2717,13 +2707,12 @@ ret@~0.1.10:
   resolved "https://registry.npm.taobao.org/ret/download/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha1-uKSCXVvbH8P29Twrwz+BOIaBx7w=
 
-retry-as-promised@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.npm.taobao.org/retry-as-promised/download/retry-as-promised-2.3.2.tgz#cd974ee4fd9b5fe03cbf31871ee48221c07737b7"
-  integrity sha1-zZdO5P2bX+A8vzGHHuSCIcB3N7c=
+retry-as-promised@^3.1.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/retry-as-promised/-/retry-as-promised-3.2.0.tgz#769f63d536bec4783549db0777cb56dadd9d8543"
+  integrity sha512-CybGs60B7oYU/qSQ6kuaFmRd9sTZ6oXSc0toqePvV74Ac6/IFZSI1ReFQmtCN+uvW1Mtqdwpvt/LGOiCBAY2Mg==
   dependencies:
-    bluebird "^3.4.6"
-    debug "^2.6.9"
+    any-promise "^1.3.0"
 
 right-align@^0.1.1:
   version "0.1.3"
@@ -2773,38 +2762,46 @@ semver-diff@^2.0.0:
   dependencies:
     semver "^5.0.3"
 
-semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.5.0, semver@^5.6.0, semver@^5.7.1:
+semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.6.0, semver@^5.7.1:
   version "5.7.1"
   resolved "https://registry.npm.taobao.org/semver/download/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha1-qVT5Ma66UI0we78Gnv8MAclhFvc=
 
+semver@^6.1.1:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
+  integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
+
 seq-queue@^0.0.5:
   version "0.0.5"
   resolved "https://registry.npm.taobao.org/seq-queue/download/seq-queue-0.0.5.tgz#d56812e1c017a6e4e7c3e3a37a1da6d78dd3c93e"
   integrity sha1-1WgS4cAXpuTnw+Ojeh2m143TyT4=
 
-sequelize@^4.20.1:
-  version "4.44.3"
-  resolved "https://registry.npm.taobao.org/sequelize/download/sequelize-4.44.3.tgz#29d7af9efdfad4c796a75764e91f701fc454cee0"
-  integrity sha1-Kdevnv361MeWp1dk6R9wH8RUzuA=
+sequelize-pool@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/sequelize-pool/-/sequelize-pool-2.3.0.tgz#64f1fe8744228172c474f530604b6133be64993d"
+  integrity sha512-Ibz08vnXvkZ8LJTiUOxRcj1Ckdn7qafNZ2t59jYHMX1VIebTAOYefWdRYFt6z6+hy52WGthAHAoLc9hvk3onqA==
+
+sequelize@^5.15.1:
+  version "5.15.1"
+  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-5.15.1.tgz#f130ded17e74395ae7f5e265277c99577e895afb"
+  integrity sha512-DCzzJYvJLMKnyf8G3at2A+yM9M2fSQmTmuOYIpCWM8Gjqx3XfgNTd1NkuyPWFoi1/d1AXQsN2VDPXkPczida8A==
   dependencies:
     bluebird "^3.5.0"
     cls-bluebird "^2.1.0"
-    debug "^3.1.0"
-    depd "^1.1.0"
+    debug "^4.1.1"
     dottie "^2.0.0"
-    generic-pool "3.5.0"
     inflection "1.12.0"
-    lodash "^4.17.1"
-    moment "^2.20.0"
-    moment-timezone "^0.5.14"
-    retry-as-promised "^2.3.2"
-    semver "^5.5.0"
-    terraformer-wkt-parser "^1.1.2"
+    lodash "^4.17.11"
+    moment "^2.24.0"
+    moment-timezone "^0.5.21"
+    retry-as-promised "^3.1.0"
+    semver "^6.1.1"
+    sequelize-pool "^2.3.0"
     toposort-class "^1.0.1"
     uuid "^3.2.1"
-    validator "^10.4.0"
-    wkx "^0.4.1"
+    validator "^10.11.0"
+    wkx "^0.4.6"
 
 set-blocking@~2.0.0:
   version "2.0.0"
@@ -2926,10 +2923,10 @@ socket.io-parser@~3.4.0:
     debug "~4.1.0"
     isarray "2.0.1"
 
-socket.io@^2.0.4:
+socket.io@^2.3.0:
   version "2.3.0"
-  resolved "https://registry.npm.taobao.org/socket.io/download/socket.io-2.3.0.tgz#cd762ed6a4faeca59bc1f3e243c0969311eb73fb"
-  integrity sha1-zXYu1qT67KWbwfPiQ8CWkxHrc/s=
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.3.0.tgz#cd762ed6a4faeca59bc1f3e243c0969311eb73fb"
+  integrity sha512-2A892lrj0GcgR/9Qk81EaY2gYhCBxurV0PfmmESO6p27QPrUK1J3zdns+5QPqvUYK2q657nSj0guoIil9+7eFg==
   dependencies:
     debug "~4.1.0"
     engine.io "~3.4.0"
@@ -3107,21 +3104,6 @@ term-size@^1.2.0:
   dependencies:
     execa "^0.7.0"
 
-terraformer-wkt-parser@^1.1.2:
-  version "1.2.0"
-  resolved "https://registry.npm.taobao.org/terraformer-wkt-parser/download/terraformer-wkt-parser-1.2.0.tgz#c9d6ac3dff25f4c0bd344e961f42694961834c34"
-  integrity sha1-ydasPf8l9MC9NE6WH0JpSWGDTDQ=
-  dependencies:
-    "@types/geojson" "^1.0.0"
-    terraformer "~1.0.5"
-
-terraformer@~1.0.5:
-  version "1.0.9"
-  resolved "https://registry.npm.taobao.org/terraformer/download/terraformer-1.0.9.tgz#77851fef4a49c90b345dc53cf26809fdf29dcda6"
-  integrity sha1-d4Uf70pJyQs0XcU88mgJ/fKdzaY=
-  optionalDependencies:
-    "@types/geojson" "^1.0.0"
-
 thenify-all@^1.0.0:
   version "1.6.0"
   resolved "https://registry.npm.taobao.org/thenify-all/download/thenify-all-1.6.0.tgz#1a1918d402d8fc3f98fbf234db0bcc8cc10e9726"
@@ -3358,10 +3340,10 @@ uuid@^3.2.1, uuid@^3.3.2:
   resolved "https://registry.npm.taobao.org/uuid/download/uuid-3.3.3.tgz#4568f0216e78760ee1dbf3a4d2cf53e224112866"
   integrity sha1-RWjwIW54dg7h2/Ok0s9T4iQRKGY=
 
-validator@^10.4.0:
+validator@^10.11.0:
   version "10.11.0"
-  resolved "https://registry.npm.taobao.org/validator/download/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
-  integrity sha1-ADEI6m6amHTTHMyeUAaFbM12sig=
+  resolved "https://registry.yarnpkg.com/validator/-/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
+  integrity sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw==
 
 vary@^1.1.2:
   version "1.1.2"
@@ -3416,10 +3398,10 @@ with@^5.0.0:
     acorn "^3.1.0"
     acorn-globals "^3.0.0"
 
-wkx@^0.4.1:
+wkx@^0.4.6:
   version "0.4.8"
-  resolved "https://registry.npm.taobao.org/wkx/download/wkx-0.4.8.tgz#a092cf088d112683fdc7182fd31493b2c5820003"
-  integrity sha1-oJLPCI0RJoP9xxgv0xSTssWCAAM=
+  resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.4.8.tgz#a092cf088d112683fdc7182fd31493b2c5820003"
+  integrity sha512-ikPXMM9IR/gy/LwiOSqWlSL3X/J5uk9EO2hHNRXS41eTLXaUFEVw9fn/593jW/tE5tedNg8YjT5HkCa4FqQZyQ==
   dependencies:
     "@types/node" "*"