diff --git a/package.json b/package.json
index 15df280..c1aae72 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "node-bits-internal-database": "^0.0.12",
     "pluralize": "^7.0.0",
     "semver": "^5.5.1",
-    "sequelize": "^4.38.1"
+    "sequelize": "^5.15.1"
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",
diff --git a/yarn.lock b/yarn.lock
index 48e1060..d253e3c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -80,10 +80,6 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
-"@types/geojson@^1.0.0":
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/@types/geojson/-/geojson-1.0.6.tgz#3e02972728c69248c2af08d60a48cbb8680fffdf"
-
 "@types/node@*":
   version "10.9.4"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.9.4.tgz#0f4cb2dc7c1de6096055357f70179043c33e9897"
@@ -143,6 +139,10 @@ ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+any-promise@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -435,39 +435,39 @@ babel-plugin-check-es2015-constants@^6.22.0:
 
 babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
 
 babel-plugin-syntax-async-generators@^6.5.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-async-generators/-/babel-plugin-syntax-async-generators-6.13.0.tgz#6bc963ebb16eccbae6b92b596eb7f35c342a8b9a"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-async-generators/-/babel-plugin-syntax-async-generators-6.13.0.tgz#6bc963ebb16eccbae6b92b596eb7f35c342a8b9a"
 
 babel-plugin-syntax-class-constructor-call@^6.18.0:
   version "6.18.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-class-constructor-call/-/babel-plugin-syntax-class-constructor-call-6.18.0.tgz#9cb9d39fe43c8600bec8146456ddcbd4e1a76416"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-class-constructor-call/-/babel-plugin-syntax-class-constructor-call-6.18.0.tgz#9cb9d39fe43c8600bec8146456ddcbd4e1a76416"
 
 babel-plugin-syntax-class-properties@^6.8.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz#d7eb23b79a317f8543962c505b827c7d6cac27de"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz#d7eb23b79a317f8543962c505b827c7d6cac27de"
 
 babel-plugin-syntax-decorators@^6.13.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-decorators/-/babel-plugin-syntax-decorators-6.13.0.tgz#312563b4dbde3cc806cee3e416cceeaddd11ac0b"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-decorators/-/babel-plugin-syntax-decorators-6.13.0.tgz#312563b4dbde3cc806cee3e416cceeaddd11ac0b"
 
 babel-plugin-syntax-dynamic-import@^6.18.0:
   version "6.18.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz#8d6a26229c83745a9982a441051572caa179b1da"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz#8d6a26229c83745a9982a441051572caa179b1da"
 
 babel-plugin-syntax-exponentiation-operator@^6.8.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
 
 babel-plugin-syntax-export-extensions@^6.8.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-export-extensions/-/babel-plugin-syntax-export-extensions-6.13.0.tgz#70a1484f0f9089a4e84ad44bac353c95b9b12721"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-export-extensions/-/babel-plugin-syntax-export-extensions-6.13.0.tgz#70a1484f0f9089a4e84ad44bac353c95b9b12721"
 
 babel-plugin-syntax-object-rest-spread@^6.8.0:
   version "6.13.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
 
 babel-plugin-syntax-trailing-function-commas@^6.22.0:
   version "6.22.0"
@@ -859,7 +859,7 @@ binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
 
-bluebird@^3.4.6, bluebird@^3.5.0:
+bluebird@^3.5.0:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.2.tgz#1be0908e054a751754549c270489c1505d4ab15a"
 
@@ -943,7 +943,7 @@ capture-stack-trace@^1.0.0:
 
 chalk@^1.1.3:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -1153,6 +1153,12 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  dependencies:
+    ms "^2.1.1"
+
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -1204,10 +1210,6 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
-depd@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
-
 detect-indent@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
@@ -1247,7 +1249,7 @@ duplexer3@^0.1.4:
 
 duplexer@^0.1.1, duplexer@~0.1.1:
   version "0.1.1"
-  resolved "http://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
+  resolved "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
 
 error-ex@^1.2.0:
   version "1.3.2"
@@ -1609,10 +1611,6 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-generic-pool@^3.4.0:
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-3.4.2.tgz#92ff7196520d670839a67308092a12aadf2f6a59"
-
 get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
@@ -1679,7 +1677,7 @@ globby@^5.0.0:
 
 got@^6.7.1:
   version "6.7.1"
-  resolved "http://registry.npmjs.org/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
+  resolved "https://registry.npmjs.org/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
   dependencies:
     create-error-class "^3.0.0"
     duplexer3 "^0.1.4"
@@ -1991,7 +1989,7 @@ is-number@^4.0.0:
 
 is-obj@^1.0.0:
   version "1.0.1"
-  resolved "http://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+  resolved "https://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
 
 is-path-cwd@^1.0.0:
   version "1.0.0"
@@ -2157,9 +2155,9 @@ lodash.debounce@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
 
-lodash@^4.17.1, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5:
+  version "4.17.15"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -2250,11 +2248,11 @@ minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
 
 minimist@0.0.8:
   version "0.0.8"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 minimist@^1.2.0:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
 minipass@^2.2.1, minipass@^2.3.3:
   version "2.3.4"
@@ -2278,19 +2276,19 @@ mixin-deep@^1.2.0:
 
 mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
-moment-timezone@^0.5.14:
-  version "0.5.21"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.21.tgz#3cba247d84492174dbf71de2a9848fa13207b845"
+moment-timezone@^0.5.21:
+  version "0.5.31"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.31.tgz#9c40d8c5026f0c7ab46eda3d63e49c155148de05"
   dependencies:
     moment ">= 2.9.0"
 
-"moment@>= 2.9.0", moment@^2.20.0:
-  version "2.22.2"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.22.2.tgz#3c257f9839fc0e93ff53149632239eb90783ff66"
+"moment@>= 2.9.0", moment@^2.24.0:
+  version "2.27.0"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.27.0.tgz#8bff4e3e26a236220dfe3e36de756b6ebaa0105d"
 
 ms@2.0.0:
   version "2.0.0"
@@ -2616,7 +2614,7 @@ path-type@^2.0.0:
 
 pause-stream@^0.0.11:
   version "0.0.11"
-  resolved "http://registry.npmjs.org/pause-stream/-/pause-stream-0.0.11.tgz#fe5a34b0cbce12b5aa6a2b403ee2e73b602f1445"
+  resolved "https://registry.npmjs.org/pause-stream/-/pause-stream-0.0.11.tgz#fe5a34b0cbce12b5aa6a2b403ee2e73b602f1445"
   dependencies:
     through "~2.3"
 
@@ -2730,7 +2728,7 @@ read-pkg@^2.0.0:
 
 readable-stream@^2.0.2, readable-stream@^2.0.6:
   version "2.3.6"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -2873,12 +2871,11 @@ ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
 
-retry-as-promised@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/retry-as-promised/-/retry-as-promised-2.3.2.tgz#cd974ee4fd9b5fe03cbf31871ee48221c07737b7"
+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"
   dependencies:
-    bluebird "^3.4.6"
-    debug "^2.6.9"
+    any-promise "^1.3.0"
 
 rimraf@^2.2.8, rimraf@^2.6.1:
   version "2.6.2"
@@ -2926,27 +2923,33 @@ semver-diff@^2.0.0:
   version "5.5.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
 
-sequelize@^4.38.1:
-  version "4.38.1"
-  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-4.38.1.tgz#4fd832c33c0ff44a6516bf7133b1ec6311fa4297"
+semver@^6.1.1:
+  version "6.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
+
+sequelize-pool@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/sequelize-pool/-/sequelize-pool-2.3.0.tgz#64f1fe8744228172c474f530604b6133be64993d"
+
+sequelize@^5.15.1:
+  version "5.15.1"
+  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-5.15.1.tgz#f130ded17e74395ae7f5e265277c99577e895afb"
   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 "^3.4.0"
     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"
@@ -3108,7 +3111,7 @@ static-extend@^0.1.1:
 
 stream-combiner@^0.2.2:
   version "0.2.2"
-  resolved "http://registry.npmjs.org/stream-combiner/-/stream-combiner-0.2.2.tgz#aec8cbac177b56b6f4fa479ced8c1912cee52858"
+  resolved "https://registry.npmjs.org/stream-combiner/-/stream-combiner-0.2.2.tgz#aec8cbac177b56b6f4fa479ced8c1912cee52858"
   dependencies:
     duplexer "~0.1.1"
     through "~2.3.4"
@@ -3170,7 +3173,7 @@ supports-color@^5.2.0, supports-color@^5.3.0:
 
 table@^4.0.3:
   version "4.0.3"
-  resolved "http://registry.npmjs.org/table/-/table-4.0.3.tgz#00b5e2b602f1794b9acaf9ca908a76386a7813bc"
+  resolved "https://registry.npmjs.org/table/-/table-4.0.3.tgz#00b5e2b602f1794b9acaf9ca908a76386a7813bc"
   dependencies:
     ajv "^6.0.1"
     ajv-keywords "^3.0.0"
@@ -3197,26 +3200,13 @@ term-size@^1.2.0:
   dependencies:
     execa "^0.7.0"
 
-terraformer-wkt-parser@^1.1.2:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/terraformer-wkt-parser/-/terraformer-wkt-parser-1.2.0.tgz#c9d6ac3dff25f4c0bd344e961f42694961834c34"
-  dependencies:
-    "@types/geojson" "^1.0.0"
-    terraformer "~1.0.5"
-
-terraformer@~1.0.5:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/terraformer/-/terraformer-1.0.9.tgz#77851fef4a49c90b345dc53cf26809fdf29dcda6"
-  optionalDependencies:
-    "@types/geojson" "^1.0.0"
-
 text-table@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
 through@2, through@^2.3.6, through@^2.3.8, through@~2.3, through@~2.3.4:
   version "2.3.8"
-  resolved "http://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  resolved "https://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
 timed-out@^4.0.0:
   version "4.0.1"
@@ -3382,9 +3372,9 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-validator@^10.4.0:
-  version "10.7.1"
-  resolved "https://registry.yarnpkg.com/validator/-/validator-10.7.1.tgz#dd4cc750c2134ce4a15a2acfc7b233669d659c5b"
+validator@^10.11.0:
+  version "10.11.0"
+  resolved "https://registry.yarnpkg.com/validator/-/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
 
 which@^1.2.9:
   version "1.3.1"
@@ -3404,9 +3394,9 @@ widest-line@^2.0.0:
   dependencies:
     string-width "^2.1.1"
 
-wkx@^0.4.1:
-  version "0.4.5"
-  resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.4.5.tgz#a85e15a6e69d1bfaec2f3c523be3dfa40ab861d0"
+wkx@^0.4.6:
+  version "0.4.8"
+  resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.4.8.tgz#a092cf088d112683fdc7182fd31493b2c5820003"
   dependencies:
     "@types/node" "*"