diff --git a/package.json b/package.json
index 64cc0ff..b492628 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "pg-hstore": "^2.3.2"
   },
   "devDependencies": {
-    "sequelize": "^4.42.0",
+    "sequelize": "^5.15.1",
     "sequelize-auto": "^0.4.29",
     "sequelize-cli": "^5.4.0"
   }
diff --git a/yarn.lock b/yarn.lock
index d3098b7..6b774fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -94,6 +94,11 @@ 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"
+  integrity sha1-q8av7tzqUugJzcA3au0845Y10X8=
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
@@ -511,6 +516,13 @@ debug@^3.1.0, debug@^3.2.6:
   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"
+  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
+  dependencies:
+    ms "^2.1.1"
+
 decamelize@^1.1.1, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
@@ -1036,11 +1048,6 @@ generic-pool@2.4.2:
   resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.4.2.tgz#886bc5bf0beb7db96e81bcbba078818de5a62683"
   integrity sha1-iGvFvwvrfblugby7oHiBjeWmJoM=
 
-generic-pool@^3.4.0:
-  version "3.6.1"
-  resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-3.6.1.tgz#a51a8439ee86f0bbcf100fc1db3f45c86289deb4"
-  integrity sha512-iMmD/pY4q0+V+f8o4twE9JPeqfNuX+gJAaIPB3B0W1lFkBOtTxBo6B0HxHPgGhzQA8jego7EWopcYq/UDJO2KA==
-
 get-caller-file@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
@@ -1547,7 +1554,7 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash@^4.17.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
@@ -1704,14 +1711,14 @@ module-not-found-error@^1.0.0:
   resolved "https://registry.yarnpkg.com/module-not-found-error/-/module-not-found-error-1.0.1.tgz#cf8b4ff4f29640674d6cdd02b0e3bc523c2bbdc0"
   integrity sha1-z4tP9PKWQGdNbN0CsOO8UjwrvcA=
 
-moment-timezone@^0.5.14, moment-timezone@^0.5.4:
-  version "0.5.23"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.23.tgz#7cbb00db2c14c71b19303cb47b0fb0a6d8651463"
-  integrity sha512-WHFH85DkCfiNMDX5D3X7hpNH3/PUhjTGcD0U1SgfBGZxJ3qUmJh5FdvaFjcClxOvB3rzdfj4oRffbI38jEnC1w==
+moment-timezone@^0.5.21, moment-timezone@^0.5.4:
+  version "0.5.27"
+  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.27.tgz#73adec8139b6fe30452e78f210f27b1f346b8877"
+  integrity sha512-EIKQs7h5sAsjhPCqN6ggx6cEbs94GK050254TIJySD1bzoM5JTYDwAU1IoVOeTOL6Gm27kYJ51/uuvq1kIlrbw==
   dependencies:
     moment ">= 2.9.0"
 
-"moment@>= 2.9.0", moment@^2.13.0, moment@^2.20.0, moment@^2.24.0:
+"moment@>= 2.9.0", moment@^2.13.0, moment@^2.24.0:
   version "2.24.0"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
   integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
@@ -2304,7 +2311,7 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-retry-as-promised@^2.0.0, retry-as-promised@^2.3.2:
+retry-as-promised@^2.0.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/retry-as-promised/-/retry-as-promised-2.3.2.tgz#cd974ee4fd9b5fe03cbf31871ee48221c07737b7"
   integrity sha1-zZdO5P2bX+A8vzGHHuSCIcB3N7c=
@@ -2312,6 +2319,13 @@ retry-as-promised@^2.0.0, retry-as-promised@^2.3.2:
     bluebird "^3.4.6"
     debug "^2.6.9"
 
+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:
+    any-promise "^1.3.0"
+
 rimraf@^2.2.8, rimraf@~2.6.2:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
@@ -2365,6 +2379,11 @@ semver@4.3.2:
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.2.tgz#c7a07158a80bedd052355b770d82d6640f803be7"
   integrity sha1-x6BxWKgL7dBSNVt3DYLWZA+AO+c=
 
+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==
+
 send@0.16.2:
   version "0.16.2"
   resolved "https://registry.yarnpkg.com/send/-/send-0.16.2.tgz#6ecca1e0f8c156d141597559848df64730a6bbc1"
@@ -2410,6 +2429,11 @@ sequelize-cli@^5.4.0:
     umzug "^2.1.0"
     yargs "^12.0.5"
 
+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@^3.30.2:
   version "3.34.0"
   resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-3.34.0.tgz#edbceb53dd7c9e5a0fd6b35fb89565239e8f09e4"
@@ -2432,28 +2456,26 @@ sequelize@^3.30.2:
     validator "^5.2.0"
     wkx "0.2.0"
 
-sequelize@^4.42.0:
-  version "4.42.0"
-  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-4.42.0.tgz#439467ba7bfe7d5afcc56d62b3e091860fbf18f3"
-  integrity sha512-qxAYnX4rcv7PbNtEidb56REpxNJCdbN0qyk1jb3+e6sE7OrmS0nYMU+MFVbNTJtZfSpOEEL1TX0TkMw+wzZBxg==
+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 "^3.4.0"
     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"
 
 serve-static@1.13.2:
   version "1.13.2"
@@ -2725,7 +2747,7 @@ table@4.0.2:
     slice-ansi "1.0.0"
     string-width "^2.1.1"
 
-terraformer-wkt-parser@^1.1.0, terraformer-wkt-parser@^1.1.2:
+terraformer-wkt-parser@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/terraformer-wkt-parser/-/terraformer-wkt-parser-1.2.0.tgz#c9d6ac3dff25f4c0bd344e961f42694961834c34"
   integrity sha512-QU3iA54St5lF8Za1jg1oj4NYc8sn5tCZ08aNSWDeGzrsaV48eZk1iAVWasxhNspYBoCqdHuoot1pUTUrE1AJ4w==
@@ -2889,7 +2911,7 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-validator@^10.4.0:
+validator@^10.11.0:
   version "10.11.0"
   resolved "https://registry.yarnpkg.com/validator/-/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
   integrity sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw==
@@ -2921,10 +2943,10 @@ wkx@0.2.0:
   resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.2.0.tgz#76c24f16acd0cd8f93cd34aa331e0f7961256e84"
   integrity sha1-dsJPFqzQzY+TzTSqMx4PeWElboQ=
 
-wkx@^0.4.1:
-  version "0.4.6"
-  resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.4.6.tgz#228ab592e6457382ea6fb79fc825058d07fce523"
-  integrity sha512-LHxXlzRCYQXA9ZHgs8r7Gafh0gVOE8o3QmudM1PIkOdkXXjW7Thcl+gb2P2dRuKgW8cqkitCRZkkjtmWzpHi7A==
+wkx@^0.4.6:
+  version "0.4.8"
+  resolved "https://registry.yarnpkg.com/wkx/-/wkx-0.4.8.tgz#a092cf088d112683fdc7182fd31493b2c5820003"
+  integrity sha512-ikPXMM9IR/gy/LwiOSqWlSL3X/J5uk9EO2hHNRXS41eTLXaUFEVw9fn/593jW/tE5tedNg8YjT5HkCa4FqQZyQ==
   dependencies:
     "@types/node" "*"