diff --git a/tasks-backend/package-lock.json b/tasks-backend/package-lock.json
index ec4df4e..1b3c639 100644
--- a/tasks-backend/package-lock.json
+++ b/tasks-backend/package-lock.json
@@ -4,20 +4,6 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
-    "@babel/polyfill": {
-      "version": "7.4.4",
-      "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.4.4.tgz",
-      "integrity": "sha512-WlthFLfhQQhh+A2Gn5NSFl0Huxz36x86Jn+E9OW7ibK8edKPq+KLy4apM1yDpQ8kJOVi1OVjpP4vSDLdrI04dg==",
-      "requires": {
-        "core-js": "^2.6.5",
-        "regenerator-runtime": "^0.13.2"
-      }
-    },
-    "@types/bluebird": {
-      "version": "3.5.27",
-      "resolved": "https://registry.npmjs.org/@types/bluebird/-/bluebird-3.5.27.tgz",
-      "integrity": "sha512-6BmYWSBea18+tSjjSC3QIyV93ZKAeNWGM7R6aYt1ryTZXrlHF+QLV0G2yV0viEGVyRkyQsWfMoJ0k/YghBX5sQ=="
-    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -197,9 +183,9 @@
       "dev": true
     },
     "bluebird": {
-      "version": "3.5.5",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.5.tgz",
-      "integrity": "sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w=="
+      "version": "3.7.1",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.1.tgz",
+      "integrity": "sha512-DdmyoGCleJnkbp3nkbxTLJ18rjDsE4yCggEwKNXkeV123sPNfOCYeDoeuOY+F2FrSjO1YXcTU+dsy96KMy+gcg=="
     },
     "body-parser": {
       "version": "1.19.0",
@@ -402,14 +388,14 @@
       "dev": true
     },
     "colorette": {
-      "version": "1.0.8",
-      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.0.8.tgz",
-      "integrity": "sha512-X6Ck90ReaF+EfKdVGB7vdIQ3dr651BbIrBwY5YBKg13fjH+940sTtp7/Pkx33C6ntYfQcRumOs/aUQhaRPpbTQ=="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.1.0.tgz",
+      "integrity": "sha512-6S062WDQUXi6hOfkO/sBPVwE5ASXY4G2+b4atvhJfSsuUUhIaUKlkjLe9692Ipyt5/a+IPF5aVTu3V5gvXq5cg=="
     },
     "commander": {
-      "version": "2.20.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ=="
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
+      "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow=="
     },
     "component-emitter": {
       "version": "1.3.0",
@@ -469,11 +455,6 @@
       "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
       "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40="
     },
-    "core-js": {
-      "version": "2.6.9",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.9.tgz",
-      "integrity": "sha512-HOpZf6eXmnl7la+cUdMnLvUxKNqLUzJvgIziQ0DiF3JwSImNphIqdGqzj6hIKyX04MmV0poclQ7+wjWvxQyR2A=="
-    },
     "core-util-is": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
@@ -1464,9 +1445,9 @@
       "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg="
     },
     "getopts": {
-      "version": "2.2.4",
-      "resolved": "https://registry.npmjs.org/getopts/-/getopts-2.2.4.tgz",
-      "integrity": "sha512-Rz7DGyomZjrenu9Jx4qmzdlvJgvrEFHXHvjK0FcZtcTC1U5FmES7OdZHUwMuSnEE6QvBvwse1JODKj7TgbSEjQ=="
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/getopts/-/getopts-2.2.5.tgz",
+      "integrity": "sha512-9jb7AW5p3in+IiJWhQiZmmwkpLaR/ccTWdWQCtZM66HJcHHLegowh4q4tSD7gouUyeNvFWRavfK9GXosQHDpFA=="
     },
     "glob-parent": {
       "version": "3.1.0",
@@ -1920,26 +1901,24 @@
       "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
     },
     "knex": {
-      "version": "0.17.6",
-      "resolved": "https://registry.npmjs.org/knex/-/knex-0.17.6.tgz",
-      "integrity": "sha512-4SKp8jaBxqlEoaveenmpfnHEv5Kzo6/vhIj8UhW1srGw/FKqARTr+7Fv8C1C1qeVHDjv0coQWuUzN5eermHUsw==",
-      "requires": {
-        "@babel/polyfill": "^7.4.4",
-        "@types/bluebird": "^3.5.27",
-        "bluebird": "^3.5.5",
-        "colorette": "1.0.8",
-        "commander": "^2.20.0",
+      "version": "0.19.5",
+      "resolved": "https://registry.npmjs.org/knex/-/knex-0.19.5.tgz",
+      "integrity": "sha512-Hy258avCVircQq+oj3WBqPzl8jDIte438Qlq+8pt1i/TyLYVA4zPh2uKc7Bx0t+qOpa6D42HJ2jjtl2vagzilw==",
+      "requires": {
+        "bluebird": "^3.7.0",
+        "colorette": "1.1.0",
+        "commander": "^3.0.2",
         "debug": "4.1.1",
-        "getopts": "2.2.4",
-        "inherits": "~2.0.3",
+        "getopts": "2.2.5",
+        "inherits": "~2.0.4",
         "interpret": "^1.2.0",
         "liftoff": "3.1.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.15",
         "mkdirp": "^0.5.1",
-        "pg-connection-string": "2.0.0",
-        "tarn": "^1.1.5",
-        "tildify": "1.2.0",
-        "uuid": "^3.3.2",
+        "pg-connection-string": "2.1.0",
+        "tarn": "^2.0.0",
+        "tildify": "2.0.0",
+        "uuid": "^3.3.3",
         "v8flags": "^3.1.3"
       },
       "dependencies": {
@@ -1951,6 +1930,11 @@
             "ms": "^2.1.1"
           }
         },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -1983,9 +1967,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
+      "version": "4.17.15",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
     },
     "lodash.includes": {
       "version": "4.3.0",
@@ -2338,11 +2322,6 @@
         "ee-first": "1.1.1"
       }
     },
-    "os-homedir": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz",
-      "integrity": "sha1-/7xJiDNuDoM94MFox+8VISGqf7M="
-    },
     "p-finally": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
@@ -2493,9 +2472,9 @@
       }
     },
     "pg-connection-string": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.0.0.tgz",
-      "integrity": "sha1-Pu/lmX4G2Ugh5NUC5CtqHHP434I="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.1.0.tgz",
+      "integrity": "sha512-bhlV7Eq09JrRIvo1eKngpwuqKtJnNhZdpdOlvrPrA4dxqXPjxSrbNrfnIDmTpwMyRszrcV4kU5ZA4mMsQUrjdg=="
     },
     "pg-int8": {
       "version": "1.0.1",
@@ -2669,11 +2648,6 @@
         "resolve": "^1.1.6"
       }
     },
-    "regenerator-runtime": {
-      "version": "0.13.2",
-      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.2.tgz",
-      "integrity": "sha512-S/TQAZJO+D3m9xeN1WTI8dLKBBiRgXBlTJvbWjCThHWZj9EvHK70Ff50/tYj2J/fvBY6JtFVwRuazHN2E7M9BA=="
-    },
     "regex-not": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/regex-not/-/regex-not-1.0.2.tgz",
@@ -2719,9 +2693,9 @@
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
     },
     "resolve": {
-      "version": "1.11.0",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.11.0.tgz",
-      "integrity": "sha512-WL2pBDjqT6pGUNSUzMw00o4T7If+z4H2x3Gz893WoUQ5KW8Vr9txp00ykiP16VBaZF5+j/OcXJHZ9+PCvdiDKw==",
+      "version": "1.12.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.12.0.tgz",
+      "integrity": "sha512-B/dOmuoAik5bKcD6s6nXDCjzUKnaDvdkRyAk6rsmsKLipWj4797iothd7jmmUhWTfinVMU+wc56rYKsit2Qy4w==",
       "requires": {
         "path-parse": "^1.0.6"
       }
@@ -3071,9 +3045,9 @@
       }
     },
     "tarn": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/tarn/-/tarn-1.1.5.tgz",
-      "integrity": "sha512-PMtJ3HCLAZeedWjJPgGnCvcphbCOMbtZpjKgLq3qM5Qq9aQud+XHrL0WlrlgnTyS8U+jrjGbEXprFcQrxPy52g=="
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/tarn/-/tarn-2.0.0.tgz",
+      "integrity": "sha512-7rNMCZd3s9bhQh47ksAQd92ADFcJUjjbyOvyFjNLwTPpGieFHMC84S+LOzw0fx1uh6hnDz/19r8CPMnIjJlMMA=="
     },
     "term-size": {
       "version": "1.2.0",
@@ -3090,12 +3064,9 @@
       "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
     },
     "tildify": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/tildify/-/tildify-1.2.0.tgz",
-      "integrity": "sha1-3OwD9V3Km3qj5bBPIYF+tW5jWIo=",
-      "requires": {
-        "os-homedir": "^1.0.0"
-      }
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/tildify/-/tildify-2.0.0.tgz",
+      "integrity": "sha512-Cc+OraorugtXNfs50hU9KS369rFXCfgGLpfCfvlc+Ud5u6VWmUQsOAa9HbTvheQdYnrdJqqv1e5oIqXppMYnSw=="
     },
     "timed-out": {
       "version": "4.0.1",
@@ -3321,9 +3292,9 @@
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.3.tgz",
+      "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ=="
     },
     "v8flags": {
       "version": "3.1.3",
diff --git a/tasks-backend/package.json b/tasks-backend/package.json
index 2e7a64d..3e56cdb 100644
--- a/tasks-backend/package.json
+++ b/tasks-backend/package.json
@@ -16,7 +16,7 @@
     "cors": "2.8.5",
     "express": "4.17.1",
     "jwt-simple": "0.5.6",
-    "knex": "0.17.6",
+    "knex": "0.19.5",
     "moment": "2.24.0",
     "passport": "0.4.0",
     "passport-jwt": "4.0.0",