diff --git a/package.json b/package.json
index 7b63f62..5a72f69 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "lint"
   ],
   "dependencies": {
-    "lodash": "4.17.15",
+    "lodash": "4.17.19",
     "moment": "^2.18.1"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 79e6354..e3cbc20 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -566,13 +566,13 @@ accepts@~1.3.5:
 
 acorn-jsx@^3.0.0:
   version "3.0.1"
-  resolved "http://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  resolved "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
   dependencies:
     acorn "^3.0.4"
 
 acorn@^3.0.4:
   version "3.3.0"
-  resolved "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
 acorn@^5.5.0:
   version "5.7.3"
@@ -671,7 +671,7 @@ array-each@^1.0.1:
 
 array-flatten@1.1.1:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+  resolved "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
 
 array-slice@^1.0.0:
   version "1.1.0"
@@ -708,7 +708,7 @@ assign-symbols@^1.0.0:
 
 async@^1.5.2:
   version "1.5.2"
-  resolved "http://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  resolved "https://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
 asynckit@^0.4.0:
   version "0.4.0"
@@ -925,7 +925,7 @@ caller-path@^0.1.0:
 
 callsites@^0.2.0:
   version "0.2.0"
-  resolved "http://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+  resolved "https://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
 
 caniuse-lite@^1.0.30000912:
   version "1.0.30000916"
@@ -943,7 +943,7 @@ chai-as-promised@^6.0.0:
 
 chai-http@^3.0.0:
   version "3.0.0"
-  resolved "http://registry.npmjs.org/chai-http/-/chai-http-3.0.0.tgz#5460d8036e1f1a12b0b5b5cbd529e6dc1d31eb4b"
+  resolved "https://registry.npmjs.org/chai-http/-/chai-http-3.0.0.tgz#5460d8036e1f1a12b0b5b5cbd529e6dc1d31eb4b"
   dependencies:
     cookiejar "2.0.x"
     is-ip "1.0.0"
@@ -953,7 +953,7 @@ chai-http@^3.0.0:
 
 chai@^3.5.0:
   version "3.5.0"
-  resolved "http://registry.npmjs.org/chai/-/chai-3.5.0.tgz#4d02637b067fe958bdbfdd3a40ec56fef7373247"
+  resolved "https://registry.npmjs.org/chai/-/chai-3.5.0.tgz#4d02637b067fe958bdbfdd3a40ec56fef7373247"
   dependencies:
     assertion-error "^1.0.1"
     deep-eql "^0.1.3"
@@ -961,7 +961,7 @@ chai@^3.5.0:
 
 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"
@@ -1071,7 +1071,7 @@ combined-stream@^1.0.6, combined-stream@~1.0.6:
 
 commander@2.9.0:
   version "2.9.0"
-  resolved "http://registry.npmjs.org/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
+  resolved "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
   dependencies:
     graceful-readlink ">= 1.0.0"
 
@@ -1238,7 +1238,7 @@ decode-uri-component@^0.2.0:
 
 deep-eql@^0.1.3:
   version "0.1.3"
-  resolved "http://registry.npmjs.org/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
+  resolved "https://registry.npmjs.org/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
   dependencies:
     type-detect "0.1.1"
 
@@ -1303,7 +1303,7 @@ diff@3.2.0:
 
 doctrine@1.5.0:
   version "1.5.0"
-  resolved "http://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
+  resolved "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
   dependencies:
     esutils "^2.0.2"
     isarray "^1.0.0"
@@ -1509,7 +1509,7 @@ expand-brackets@^2.1.4:
 
 expand-range@^1.8.1:
   version "1.8.2"
-  resolved "http://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  resolved "https://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
   dependencies:
     fill-range "^2.1.0"
 
@@ -1671,7 +1671,7 @@ fill-range@^4.0.0:
 
 finalhandler@1.1.1:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
+  resolved "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
   dependencies:
     debug "2.6.9"
     encodeurl "~1.0.2"
@@ -1761,7 +1761,7 @@ forever-agent@~0.6.1:
 
 form-data@1.0.0-rc4:
   version "1.0.0-rc4"
-  resolved "http://registry.npmjs.org/form-data/-/form-data-1.0.0-rc4.tgz#05ac6bc22227b43e4461f488161554699d4f8b5e"
+  resolved "https://registry.npmjs.org/form-data/-/form-data-1.0.0-rc4.tgz#05ac6bc22227b43e4461f488161554699d4f8b5e"
   dependencies:
     async "^1.5.2"
     combined-stream "^1.0.5"
@@ -2025,7 +2025,7 @@ hosted-git-info@^2.1.4:
 
 http-errors@1.6.3, http-errors@~1.6.2, http-errors@~1.6.3:
   version "1.6.3"
-  resolved "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
     depd "~1.1.2"
     inherits "2.0.3"
@@ -2167,7 +2167,7 @@ is-buffer@^1.1.5:
 
 is-builtin-module@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  resolved "https://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
   dependencies:
     builtin-modules "^1.0.0"
 
@@ -2385,7 +2385,7 @@ jsesc@^2.5.1:
 
 jsesc@~0.5.0:
   version "0.5.0"
-  resolved "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
+  resolved "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
 json-schema-traverse@^0.3.0:
   version "0.3.1"
@@ -2498,7 +2498,7 @@ liftoff@3.1.0:
 
 load-json-file@^2.0.0:
   version "2.0.0"
-  resolved "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  resolved "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -2559,14 +2559,10 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash@4.17.15, lodash@^4.17.15:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
-
-lodash@^4.17.10, lodash@^4.17.4, lodash@^4.3.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+lodash@4.17.19, lodash@^4.17.10, lodash@^4.17.15, lodash@^4.17.4, lodash@^4.3.0:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -2618,7 +2614,7 @@ math-random@^1.0.1:
 
 media-typer@0.3.0:
   version "0.3.0"
-  resolved "http://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+  resolved "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
 merge-descriptors@1.0.1:
   version "1.0.1"
@@ -2713,7 +2709,7 @@ minimist@0.0.8:
 
 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@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
   version "2.9.0"
@@ -2987,7 +2983,7 @@ optionator@^0.8.2:
 
 os-homedir@^1.0.0:
   version "1.0.2"
-  resolved "http://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+  resolved "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
 os-shim@^0.1.2:
   version "0.1.3"
@@ -3071,7 +3067,7 @@ path-exists@^3.0.0:
 
 path-is-absolute@^1.0.0:
   version "1.0.1"
-  resolved "http://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+  resolved "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
 path-is-inside@^1.0.2:
   version "1.0.2"
@@ -3121,7 +3117,7 @@ pg-connection-string@2.1.0:
 
 pify@^2.0.0:
   version "2.3.0"
-  resolved "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+  resolved "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
 pify@^3.0.0:
   version "3.0.0"
@@ -3275,7 +3271,7 @@ read-pkg@^2.0.0:
 
 readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.2.2:
   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"
@@ -3775,13 +3771,13 @@ string-width@^1.0.1:
 
 string_decoder@~1.1.1:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  resolved "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
   dependencies:
     safe-buffer "~5.1.0"
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
-  resolved "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
   dependencies:
     ansi-regex "^2.0.0"
 
@@ -3801,7 +3797,7 @@ strip-json-comments@~2.0.1:
 
 superagent@^2.0.0:
   version "2.3.0"
-  resolved "http://registry.npmjs.org/superagent/-/superagent-2.3.0.tgz#703529a0714e57e123959ddefbce193b2e50d115"
+  resolved "https://registry.npmjs.org/superagent/-/superagent-2.3.0.tgz#703529a0714e57e123959ddefbce193b2e50d115"
   dependencies:
     component-emitter "^1.2.0"
     cookiejar "^2.0.6"
@@ -3866,7 +3862,7 @@ text-table@~0.2.0:
 
 through@^2.3.6:
   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"
 
 tildify@2.0.0:
   version "2.0.0"