diff --git a/.circleci/config.yml b/.circleci/config.yml
index 61f01d0b..4c16c30e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   check:
     docker:
-      - image: circleci/node:8.12.0
+      - image: circleci/node:10.13.0
     steps:
       - checkout
       - restore_cache:
@@ -19,7 +19,7 @@ jobs:
       - run: yarn run build-shrink-ray
   percy:
     docker:
-      - image: circleci/node:8.12.0-browsers
+      - image: circleci/node:10.13.0-browsers
     steps:
       - checkout
       - restore_cache:
@@ -35,7 +35,7 @@ jobs:
       - run: yarn start & sleep 20; yarn run test:percy
   a11y:
     docker:
-      - image: circleci/node:8.12.0-browsers
+      - image: circleci/node:10.13.0-browsers
     steps:
       - checkout
       - restore_cache:
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 557ed7af..82550841 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -85,7 +85,7 @@ Each contributor is required to [sign a CLA](https://cla.shopify.com/). This pro
 
 ### Contribution prerequisites
 
-- You have Node installed at v8.12.0+ and Yarn at v1.10.1+
+- You have Node installed at v10.13.0+ and Yarn at v1.10.1+
 
 ### Best practices
 
diff --git a/.nvmrc b/.nvmrc
index 368fe859..ceeec568 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-v8.12.0
+v10.13.0
diff --git a/UNRELEASED.md b/UNRELEASED.md
index f17b6650..e939a4a4 100644
--- a/UNRELEASED.md
+++ b/UNRELEASED.md
@@ -111,7 +111,7 @@ The autocomplete component is an input field that provides selectable suggestion
 - Removed empty state from `ResourceList` if there are no items and `loading` is true
 - Move to use sewing-kit for test running, updating to Jest 23 in the process. This gives us working sourcemaps for code coverage
 - Improved accessibility testing checklist
-- Updated development node environment to 8.12.0
+- Updated development node environment to 10.13.0
 - Added shopify/jest plugin to eslint config
 
 #### Open development
diff --git a/dev.yml b/dev.yml
index db028ff6..0dc3c400 100644
--- a/dev.yml
+++ b/dev.yml
@@ -2,7 +2,7 @@ name: polaris-react
 up:
   - node:
       yarn: true
-      version: v8.12.0 # to be kept in sync with .nvmrc and .circleci/config.yml
+      version: v10.13.0 # to be kept in sync with .nvmrc and .circleci/config.yml
   - git_hooks:
       pre-commit: pre-commit
 
diff --git a/package.json b/package.json
index ff0b16c2..c6937bef 100644
--- a/package.json
+++ b/package.json
@@ -134,7 +134,7 @@
     "image-webpack-loader": "^3.3.1",
     "in-publish": "^2.0.0",
     "isomorphic-fetch": "^2.2.1",
-    "node-sass": "^4.5.3",
+    "node-sass": "^4.9.3",
     "npm-run-all": "^4.0.2",
     "object-hash": "^1.3.0",
     "pa11y": "^5.0.4",
diff --git a/src/components/Frame/components/ToastManager/ToastManager.scss b/src/components/Frame/components/ToastManager/ToastManager.scss
index 58c83f91..cfba5f60 100644
--- a/src/components/Frame/components/ToastManager/ToastManager.scss
+++ b/src/components/Frame/components/ToastManager/ToastManager.scss
@@ -1,5 +1,8 @@
 :root {
-  --toast-translate-y-out: rem(150px);
+  // Sass does not allow arbitary Sass function calls in custom properties.
+  // They must be interpolated
+  // See https://github.com/sass/libsass/issues/2585
+  --toast-translate-y-out: #{rem(150px)};
   --toast-translate-y-in: 0;
 }
 
diff --git a/yarn.lock b/yarn.lock
index 70f26701..a037f108 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -261,9 +261,9 @@
     lodash-decorators "^4.3.5"
 
 "@shopify/jest-dom-mocks@^2.0.5":
-  version "2.0.7"
-  resolved "https://registry.yarnpkg.com/@shopify/jest-dom-mocks/-/jest-dom-mocks-2.0.7.tgz#56a6c641e030b7ff22e0c6576e8fc6ac3b90043d"
-  integrity sha512-N+VUk+8nybfdVa+nOM/cPC40BlruWLTcHX21YPGOsx3LRvrSpkA0C5+xeFH3e4zuH3Ig6wtzJdfy8ylt/adrXA==
+  version "2.0.9"
+  resolved "https://registry.yarnpkg.com/@shopify/jest-dom-mocks/-/jest-dom-mocks-2.0.9.tgz#1ea592b983a67f0aa7606315d9006f9e45b74400"
+  integrity sha512-UrxbwOwKu0Kx6GXC+QneG2CUA9zI7Ut3BwLtCdJBmF7oFxWyDjrUylmS6M0akC7hcOqXAXZC6areVAg7yQ+q+A==
   dependencies:
     "@shopify/javascript-utilities" "^2.1.0"
     "@types/fetch-mock" "^6.0.1"
@@ -881,14 +881,6 @@ ajv-keywords@^3.0.0, ajv-keywords@^3.1.0:
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
   integrity sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=
 
-ajv@^4.9.1:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
-  integrity sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=
-  dependencies:
-    co "^4.6.0"
-    json-stable-stringify "^1.0.1"
-
 ajv@^5.0.0, ajv@^5.1.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.3.0.tgz#4414ff74a50879c208ee5fdc826e32c303549eda"
@@ -2745,20 +2737,6 @@ boom@2.x.x:
   dependencies:
     hoek "2.x.x"
 
-boom@4.x.x:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
-  integrity sha1-T4owBctKfjiJ90kDD9JbluAdLjE=
-  dependencies:
-    hoek "4.x.x"
-
-boom@5.x.x:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-5.2.0.tgz#5dd9da6ee3a5f302077436290cb717d3f4a54e02"
-  integrity sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==
-  dependencies:
-    hoek "4.x.x"
-
 brace-expansion@^1.0.0, brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -4041,13 +4019,6 @@ cryptiles@2.x.x:
   dependencies:
     boom "2.x.x"
 
-cryptiles@3.x.x:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
-  integrity sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=
-  dependencies:
-    boom "5.x.x"
-
 crypto-browserify@1.0.9:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-1.0.9.tgz#cc5449685dfb85eb11c9828acc7cb87ab5bbfcc0"
@@ -6544,15 +6515,7 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
-fsevents@^1.0.0, fsevents@^1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.2.tgz#3282b713fb3ad80ede0e9fcf4611b5aa6fc033f4"
-  integrity sha512-Sn44E5wQW4bTHXvQmvSHwqbuiXtduD6Rrjm2ZtUEGbyrig+nUH3t/QD4M4/ZXViY556TBpRgZkHLDx3JxPwxiw==
-  dependencies:
-    nan "^2.3.0"
-    node-pre-gyp "^0.6.36"
-
-fsevents@^1.2.2:
+fsevents@^1.0.0, fsevents@^1.1.1, fsevents@^1.2.2:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
   integrity sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==
@@ -6560,16 +6523,7 @@ fsevents@^1.2.2:
     nan "^2.9.2"
     node-pre-gyp "^0.10.0"
 
-fstream-ignore@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
-  integrity sha1-nDHa40dnAY/h0kmyTa2mfQktoQU=
-  dependencies:
-    fstream "^1.0.0"
-    inherits "2"
-    minimatch "^3.0.0"
-
-fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
+fstream@^1.0.0, fstream@^1.0.2:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
   integrity sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=
@@ -7167,11 +7121,6 @@ happypack@^5.0.0:
     loader-utils "1.1.0"
     serialize-error "^2.1.0"
 
-har-schema@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
-  integrity sha1-0mMTX0MwfALGAq/I/pWXDAFRNp4=
-
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -7187,14 +7136,6 @@ har-validator@~2.0.6:
     is-my-json-valid "^2.12.4"
     pinkie-promise "^2.0.0"
 
-har-validator@~4.2.1:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
-  integrity sha1-M0gdDxu/9gDdID11gSpqX7oALio=
-  dependencies:
-    ajv "^4.9.1"
-    har-schema "^1.0.5"
-
 har-validator@~5.0.3:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
@@ -7357,7 +7298,7 @@ hash.js@^1.0.0, hash.js@^1.0.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.0"
 
-hawk@3.1.3, hawk@~3.1.3:
+hawk@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
   integrity sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=
@@ -7367,16 +7308,6 @@ hawk@3.1.3, hawk@~3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
-hawk@~6.0.2:
-  version "6.0.2"
-  resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
-  integrity sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==
-  dependencies:
-    boom "4.x.x"
-    cryptiles "3.x.x"
-    hoek "4.x.x"
-    sntp "2.x.x"
-
 header-case@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/header-case/-/header-case-1.0.1.tgz#9535973197c144b09613cd65d317ef19963bd02d"
@@ -7410,11 +7341,6 @@ hoek@2.x.x:
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
   integrity sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=
 
-hoek@4.x.x:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.0.tgz#72d9d0754f7fe25ca2d01ad8f8f9a9449a89526d"
-  integrity sha512-v0XCLxICi9nPfYrS9RL8HbYnXi9obYAeLbSP00BmnZwCK9+Ih9WOjoZ8YoHCoav2csqn4FOz4Orldsy2dmDwmQ==
-
 hoist-non-react-statics@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-2.5.0.tgz#d2ca2dfc19c5a91c5a6615ce8e564ef0347e2a40"
@@ -9161,7 +9087,7 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
-json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
+json-stable-stringify@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
   integrity sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=
@@ -10392,11 +10318,6 @@ nan@^2.10.0:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.1.tgz#90e22bccb8ca57ea4cd37cc83d3819b52eea6766"
   integrity sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==
 
-nan@^2.3.0, nan@^2.3.2:
-  version "2.7.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.7.0.tgz#d95bf721ec877e08db276ed3fc6eb78f9083ad46"
-  integrity sha1-2Vv3IeyHfgjbJ27T/G63j5CDrUY=
-
 nan@^2.9.2:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
@@ -10504,25 +10425,6 @@ node-forge@0.6.33:
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.6.33.tgz#463811879f573d45155ad6a9f43dc296e8e85ebc"
   integrity sha1-RjgRh59XPUUVWtap9D3ClujoXrw=
 
-node-gyp@^3.3.1:
-  version "3.6.2"
-  resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.6.2.tgz#9bfbe54562286284838e750eac05295853fa1c60"
-  integrity sha1-m/vlRWIoYoSDjnUOrAUpWFP6HGA=
-  dependencies:
-    fstream "^1.0.0"
-    glob "^7.0.3"
-    graceful-fs "^4.1.2"
-    minimatch "^3.0.2"
-    mkdirp "^0.5.0"
-    nopt "2 || 3"
-    npmlog "0 || 1 || 2 || 3 || 4"
-    osenv "0"
-    request "2"
-    rimraf "2"
-    semver "~5.3.0"
-    tar "^2.0.0"
-    which "1"
-
 node-gyp@^3.8.0:
   version "3.8.0"
   resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.8.0.tgz#540304261c330e80d0d5edce253a68cb3964218c"
@@ -10606,22 +10508,6 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-node-pre-gyp@^0.6.36:
-  version "0.6.38"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.38.tgz#e92a20f83416415bb4086f6d1fb78b3da73d113d"
-  integrity sha1-6Sog+DQWQVu0CG9tH7eLPac9ET0=
-  dependencies:
-    hawk "3.1.3"
-    mkdirp "^0.5.1"
-    nopt "^4.0.1"
-    npmlog "^4.0.2"
-    rc "^1.1.7"
-    request "2.81.0"
-    rimraf "^2.6.1"
-    semver "^5.3.0"
-    tar "^2.2.1"
-    tar-pack "^3.4.0"
-
 node-releases@^1.0.0-alpha.11:
   version "1.0.0-alpha.11"
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.0.0-alpha.11.tgz#73c810acc2e5b741a17ddfbb39dfca9ab9359d8a"
@@ -10629,30 +10515,6 @@ node-releases@^1.0.0-alpha.11:
   dependencies:
     semver "^5.3.0"
 
-node-sass@^4.5.3:
-  version "4.5.3"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.5.3.tgz#d09c9d1179641239d1b97ffc6231fdcec53e1568"
-  integrity sha1-0JydEXlkEjnRuX/8YjH9zsU+FWg=
-  dependencies:
-    async-foreach "^0.1.3"
-    chalk "^1.1.1"
-    cross-spawn "^3.0.0"
-    gaze "^1.0.0"
-    get-stdin "^4.0.1"
-    glob "^7.0.3"
-    in-publish "^2.0.0"
-    lodash.assign "^4.2.0"
-    lodash.clonedeep "^4.3.2"
-    lodash.mergewith "^4.6.0"
-    meow "^3.7.0"
-    mkdirp "^0.5.1"
-    nan "^2.3.2"
-    node-gyp "^3.3.1"
-    npmlog "^4.0.0"
-    request "^2.79.0"
-    sass-graph "^2.1.1"
-    stdout-stream "^1.4.0"
-
 node-sass@^4.9.1:
   version "4.9.3"
   resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.9.3.tgz#f407cf3d66f78308bb1e346b24fa428703196224"
@@ -10678,6 +10540,31 @@ node-sass@^4.9.1:
     stdout-stream "^1.4.0"
     "true-case-path" "^1.0.2"
 
+node-sass@^4.9.3:
+  version "4.10.0"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.10.0.tgz#dcc2b364c0913630945ccbf7a2bbf1f926effca4"
+  integrity sha512-fDQJfXszw6vek63Fe/ldkYXmRYK/QS6NbvM3i5oEo9ntPDy4XX7BcKZyTKv+/kSSxRtXXc7l+MSwEmYc0CSy6Q==
+  dependencies:
+    async-foreach "^0.1.3"
+    chalk "^1.1.1"
+    cross-spawn "^3.0.0"
+    gaze "^1.0.0"
+    get-stdin "^4.0.1"
+    glob "^7.0.3"
+    in-publish "^2.0.0"
+    lodash.assign "^4.2.0"
+    lodash.clonedeep "^4.3.2"
+    lodash.mergewith "^4.6.0"
+    meow "^3.7.0"
+    mkdirp "^0.5.1"
+    nan "^2.10.0"
+    node-gyp "^3.8.0"
+    npmlog "^4.0.0"
+    request "^2.88.0"
+    sass-graph "^2.2.4"
+    stdout-stream "^1.4.0"
+    "true-case-path" "^1.0.2"
+
 node-status-codes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/node-status-codes/-/node-status-codes-1.0.0.tgz#5ae5541d024645d32a58fcddc9ceecea7ae3ac2f"
@@ -11002,7 +10889,7 @@ on-headers@~1.0.1:
   resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
   integrity sha1-ko9dD0cNSTQmUepnlLCFfBAGk/c=
 
-once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0:
+once@^1.3.0, once@^1.3.1, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
@@ -11550,11 +11437,6 @@ percy-client@^2.6.0:
   optionalDependencies:
     lint-staged "^7.0.4"
 
-performance-now@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
-  integrity sha1-M+8wxcd9TqIcWlOGnZG1bY8lVeU=
-
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -12460,11 +12342,6 @@ qs@~6.3.0:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
   integrity sha1-51vV9uJoEioqDgvaYwslUMFmUCw=
 
-qs@~6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
-  integrity sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=
-
 qs@~6.5.2:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
@@ -12573,7 +12450,7 @@ raw-body@2.3.2:
     iconv-lite "0.4.19"
     unpipe "1.0.0"
 
-rc@^1.1.2, rc@^1.1.7:
+rc@^1.1.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.2.tgz#d8ce9cb57e8d64d9c7badd9876c7c34cbe3c7077"
   integrity sha1-2M6ctX6NZNnHut2YdsfDTL48cHc=
@@ -12862,7 +12739,7 @@ read-pkg@^3.0.0:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.6, readable-stream@^2.2.9:
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.6, readable-stream@^2.2.9:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   integrity sha512-m+qzzcn7KUxEmd1gMbchF+Y2eIUbieUaxkWtptyHywrX0rE8QEYqPC07Vuy4Wm32/xE16NcdBctb8S0Xe/5IeQ==
@@ -13170,34 +13047,6 @@ request-promise@^4.2.2:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-request@2, request@^2.79.0:
-  version "2.83.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
-  integrity sha512-lR3gD69osqm6EYLk9wB/G1W/laGWjzH90t1vEa2xuxHD5KUrSzp9pUSfTm+YC5Nxt2T8nMPEvKlhbQayU7bgFw==
-  dependencies:
-    aws-sign2 "~0.7.0"
-    aws4 "^1.6.0"
-    caseless "~0.12.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.1"
-    forever-agent "~0.6.1"
-    form-data "~2.3.1"
-    har-validator "~5.0.3"
-    hawk "~6.0.2"
-    http-signature "~1.2.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.17"
-    oauth-sign "~0.8.2"
-    performance-now "^2.1.0"
-    qs "~6.5.1"
-    safe-buffer "^5.1.1"
-    stringstream "~0.0.5"
-    tough-cookie "~2.3.3"
-    tunnel-agent "^0.6.0"
-    uuid "^3.1.0"
-
 request@2.78.0:
   version "2.78.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.78.0.tgz#e1c8dec346e1c81923b24acdb337f11decabe9cc"
@@ -13224,34 +13073,6 @@ request@2.78.0:
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
 
-request@2.81.0:
-  version "2.81.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
-  integrity sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    caseless "~0.12.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.1.1"
-    har-validator "~4.2.1"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    oauth-sign "~0.8.1"
-    performance-now "^0.2.0"
-    qs "~6.4.0"
-    safe-buffer "^5.0.1"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "^0.6.0"
-    uuid "^3.0.0"
-
 request@2.87.0, request@^2.85.0:
   version "2.87.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.87.0.tgz#32f00235cd08d482b4d0d68db93a829c0ed5756e"
@@ -13278,7 +13099,7 @@ request@2.87.0, request@^2.85.0:
     tunnel-agent "^0.6.0"
     uuid "^3.1.0"
 
-request@^2.87.0:
+request@^2.87.0, request@^2.88.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -13441,7 +13262,7 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.2.6, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@2, rimraf@^2.2.6, rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
@@ -13639,7 +13460,7 @@ sane@^2.0.0:
   optionalDependencies:
     fsevents "^1.1.1"
 
-sass-graph@^2.1.1, sass-graph@^2.2.4:
+sass-graph@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/sass-graph/-/sass-graph-2.2.4.tgz#13fbd63cd1caf0908b9fd93476ad43a51d1e0b49"
   integrity sha1-E/vWPNHK8JCLn9k0dq1DpR0eC0k=
@@ -14071,13 +13892,6 @@ sntp@1.x.x:
   dependencies:
     hoek "2.x.x"
 
-sntp@2.x.x:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
-  integrity sha512-FL1b58BDrqS3A11lJ0zEdnJ3UOKqVxawAkF3k7F0CVN7VQ34aZrV+G8BZ1WC9ZL7NyrwsW0oviwsWDgRuVYtJg==
-  dependencies:
-    hoek "4.x.x"
-
 sockjs-client@1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/sockjs-client/-/sockjs-client-1.1.4.tgz#5babe386b775e4cf14e7520911452654016c8b12"
@@ -14513,7 +14327,7 @@ stringify-object@^3.2.2:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
-stringstream@~0.0.4, stringstream@~0.0.5:
+stringstream@~0.0.4:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
   integrity sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=
@@ -14860,20 +14674,6 @@ tapable@^1.0.0, tapable@^1.0.0-beta.5:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.0.tgz#0d076a172e3d9ba088fd2272b2668fb8d194b78c"
   integrity sha512-IlqtmLVaZA2qab8epUXbVWRn3aB1imbDMJtjB3nu4X0NqPkcY/JH9ZtCBWKHWPxs8Svi9tyo8w2dBoi07qZbBA==
 
-tar-pack@^3.4.0:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
-  integrity sha512-PPRybI9+jM5tjtCbN2cxmmRU7YmqT3Zv/UDy48tAh2XRkLa9bAORtSWLkVc13+GJF+cdTh1yEnHEk3cpTaL5Kg==
-  dependencies:
-    debug "^2.2.0"
-    fstream "^1.0.10"
-    fstream-ignore "^1.0.5"
-    once "^1.3.3"
-    readable-stream "^2.1.4"
-    rimraf "^2.5.1"
-    tar "^2.2.1"
-    uid-number "^0.0.6"
-
 tar-stream@^1.1.1, tar-stream@^1.5.0:
   version "1.5.4"
   resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.5.4.tgz#36549cf04ed1aee9b2a30c0143252238daf94016"
@@ -14897,7 +14697,7 @@ tar-stream@^1.5.2:
     to-buffer "^1.1.1"
     xtend "^4.0.0"
 
-tar@^2.0.0, tar@^2.2.1:
+tar@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
   integrity sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=
@@ -15333,11 +15133,6 @@ uglifyjs-webpack-plugin@^1.2.4, uglifyjs-webpack-plugin@^1.2.7:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
-uid-number@^0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
-  integrity sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=
-
 unbzip2-stream@^1.0.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/unbzip2-stream/-/unbzip2-stream-1.3.1.tgz#7854da51622a7e63624221196357803b552966a1"
@@ -15635,7 +15430,7 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
-uuid@3.1.0, uuid@^3.0.0, uuid@^3.0.1, uuid@^3.1.0:
+uuid@3.1.0, uuid@^3.0.1, uuid@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.1.0.tgz#3dd3d3e790abc24d7b0d3a034ffababe28ebbc04"
   integrity sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g==