diff --git a/WcaOnRails/package.json b/WcaOnRails/package.json
index 2a60311232..30afaac187 100644
--- a/WcaOnRails/package.json
+++ b/WcaOnRails/package.json
@@ -34,7 +34,7 @@
     "sass-loader": "^6.0.7",
     "simplemde": "^1.11.2",
     "style-loader": "^0.20.3",
-    "webpack": "^3.11.0",
+    "webpack": "^4.2.0",
     "webpack-manifest-plugin": "^1.3.2",
     "webpack-merge": "^4.1.2",
     "whatwg-fetch": "^2.0.3"
diff --git a/WcaOnRails/yarn.lock b/WcaOnRails/yarn.lock
index 3938a1220e..63f01f72f8 100644
--- a/WcaOnRails/yarn.lock
+++ b/WcaOnRails/yarn.lock
@@ -56,6 +56,12 @@ acorn-dynamic-import@^2.0.0:
   dependencies:
     acorn "^4.0.3"
 
+acorn-dynamic-import@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
+  dependencies:
+    acorn "^5.0.0"
+
 acorn@^4.0.3:
   version "4.0.13"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
@@ -1035,7 +1041,7 @@ block-stream@*:
   dependencies:
     inherits "~2.0.0"
 
-bluebird@^3.5.0:
+bluebird@^3.5.0, bluebird@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
 
@@ -1122,6 +1128,23 @@ braces@^2.3.0:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
+braces@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
+  dependencies:
+    arr-flatten "^1.1.0"
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    extend-shallow "^2.0.1"
+    fill-range "^4.0.0"
+    isobject "^3.0.1"
+    kind-of "^6.0.2"
+    repeat-element "^1.1.2"
+    snapdragon "^0.8.1"
+    snapdragon-node "^2.0.1"
+    split-string "^3.0.2"
+    to-regex "^3.0.1"
+
 brorand@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
@@ -1252,6 +1275,24 @@ cacache@^10.0.1:
     unique-filename "^1.1.0"
     y18n "^3.2.1"
 
+cacache@^10.0.4:
+  version "10.0.4"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
+  dependencies:
+    bluebird "^3.5.1"
+    chownr "^1.0.1"
+    glob "^7.1.2"
+    graceful-fs "^4.1.11"
+    lru-cache "^4.1.1"
+    mississippi "^2.0.0"
+    mkdirp "^0.5.1"
+    move-concurrently "^1.0.1"
+    promise-inflight "^1.0.1"
+    rimraf "^2.6.2"
+    ssri "^5.2.4"
+    unique-filename "^1.1.0"
+    y18n "^4.0.0"
+
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
@@ -1400,10 +1441,32 @@ chokidar@^2.0.0:
   optionalDependencies:
     fsevents "^1.0.0"
 
+chokidar@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.3.tgz#dcbd4f6cbb2a55b4799ba8a840ac527e5f4b1176"
+  dependencies:
+    anymatch "^2.0.0"
+    async-each "^1.0.0"
+    braces "^2.3.0"
+    glob-parent "^3.1.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^4.0.0"
+    normalize-path "^2.1.1"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+    upath "^1.0.0"
+  optionalDependencies:
+    fsevents "^1.1.2"
+
 chownr@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.0.1.tgz#e2a75042a9551908bebd25b8523d5f9769d79181"
 
+chrome-trace-event@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-0.1.2.tgz#90f36885d5345a50621332f0717b595883d5d982"
+
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
@@ -1928,6 +1991,13 @@ define-property@^1.0.0:
   dependencies:
     is-descriptor "^1.0.0"
 
+define-property@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-2.0.2.tgz#d459689e8d654ba77e02a817f8710d702cb16e9d"
+  dependencies:
+    is-descriptor "^1.0.2"
+    isobject "^3.0.1"
+
 defined@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
@@ -2087,6 +2157,14 @@ enhanced-resolve@^3.4.0:
     object-assign "^4.0.1"
     tapable "^0.2.7"
 
+enhanced-resolve@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-4.0.0.tgz#e34a6eaa790f62fccd71d93959f56b2b432db10a"
+  dependencies:
+    graceful-fs "^4.1.2"
+    memory-fs "^0.4.0"
+    tapable "^1.0.0"
+
 errno@^0.1.3, errno@^0.1.4:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.6.tgz#c386ce8a6283f14fc09563b71560908c9bf53026"
@@ -2186,6 +2264,13 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
 esprima@^2.6.0:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
@@ -2318,7 +2403,7 @@ extend-shallow@^2.0.1:
   dependencies:
     is-extendable "^0.1.0"
 
-extend-shallow@^3.0.0:
+extend-shallow@^3.0.0, extend-shallow@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
   dependencies:
@@ -2348,6 +2433,19 @@ extglob@^2.0.2:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+extglob@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
+  dependencies:
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    expand-brackets "^2.1.4"
+    extend-shallow "^2.0.1"
+    fragment-cache "^0.2.1"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
 extract-text-webpack-plugin@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-3.0.2.tgz#5f043eaa02f9750a9258b78c0a6e0dc1408fb2f7"
@@ -2563,7 +2661,7 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
-fsevents@^1.0.0:
+fsevents@^1.0.0, fsevents@^1.1.2:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
   dependencies:
@@ -3106,7 +3204,7 @@ is-descriptor@^0.1.0:
     is-data-descriptor "^0.1.4"
     kind-of "^5.0.0"
 
-is-descriptor@^1.0.0:
+is-descriptor@^1.0.0, is-descriptor@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
   dependencies:
@@ -3201,6 +3299,10 @@ is-number@^3.0.0:
   dependencies:
     kind-of "^3.0.2"
 
+is-number@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
+
 is-obj@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
@@ -3211,6 +3313,12 @@ is-odd@^1.0.0:
   dependencies:
     is-number "^3.0.0"
 
+is-odd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
+  dependencies:
+    is-number "^4.0.0"
+
 is-path-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
@@ -3277,6 +3385,10 @@ is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
 
+is-windows@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+
 is-wsl@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-1.1.0.tgz#1f16e4aa22b04d1336b66188a66af3c600c3a66d"
@@ -3761,6 +3873,24 @@ micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+micromatch@^3.1.8:
+  version "3.1.10"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    braces "^2.3.1"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    extglob "^2.0.4"
+    fragment-cache "^0.2.1"
+    kind-of "^6.0.2"
+    nanomatch "^1.2.9"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.2"
+
 miller-rabin@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
@@ -3831,6 +3961,21 @@ mississippi@^1.3.0:
     stream-each "^1.1.0"
     through2 "^2.0.0"
 
+mississippi@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
+  dependencies:
+    concat-stream "^1.5.0"
+    duplexify "^3.4.2"
+    end-of-stream "^1.1.0"
+    flush-write-stream "^1.0.0"
+    from2 "^2.1.0"
+    parallel-transform "^1.1.0"
+    pump "^2.0.1"
+    pumpify "^1.3.3"
+    stream-each "^1.1.0"
+    through2 "^2.0.0"
+
 mixin-deep@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.0.tgz#47a8732ba97799457c8c1eca28f95132d7e8150a"
@@ -3897,6 +4042,23 @@ nanomatch@^1.2.5:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+nanomatch@^1.2.9:
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    fragment-cache "^0.2.1"
+    is-odd "^2.0.0"
+    is-windows "^1.0.2"
+    kind-of "^6.0.2"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
@@ -5144,6 +5306,13 @@ pump@^1.0.0:
     end-of-stream "^1.1.0"
     once "^1.3.1"
 
+pump@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
 pumpify@^1.3.3:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.3.5.tgz#1b671c619940abcaeac0ad0e3a3c164be760993b"
@@ -5428,6 +5597,13 @@ regex-not@^1.0.0:
   dependencies:
     extend-shallow "^2.0.1"
 
+regex-not@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
+  dependencies:
+    extend-shallow "^3.0.2"
+    safe-regex "^1.1.0"
+
 regex-parser@^2.2.1:
   version "2.2.8"
   resolved "https://registry.yarnpkg.com/regex-parser/-/regex-parser-2.2.8.tgz#da4c0cda5a828559094168930f455f532b6ffbac"
@@ -5605,6 +5781,10 @@ resolve@^1.1.7, resolve@^1.5.0:
   dependencies:
     path-parse "^1.0.5"
 
+ret@~0.1.10:
+  version "0.1.15"
+  resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
+
 rework-visit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/rework-visit/-/rework-visit-1.0.0.tgz#9945b2803f219e2f7aca00adb8bc9f640f842c9a"
@@ -5630,7 +5810,7 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1:
+rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, 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"
   dependencies:
@@ -5653,6 +5833,12 @@ safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, s
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
+safe-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  dependencies:
+    ret "~0.1.10"
+
 sass-graph@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/sass-graph/-/sass-graph-2.2.4.tgz#13fbd63cd1caf0908b9fd93476ad43a51d1e0b49"
@@ -6031,6 +6217,12 @@ ssri@^5.0.0:
   dependencies:
     safe-buffer "^5.1.0"
 
+ssri@^5.2.4:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-5.3.0.tgz#ba3872c9c6d33a0704a7d71ff045e5ec48999d06"
+  dependencies:
+    safe-buffer "^5.1.1"
+
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
@@ -6198,6 +6390,10 @@ tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
+tapable@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.0.0.tgz#cbb639d9002eed9c6b5975eb20598d7936f1f9f2"
+
 tar-pack@^3.4.0:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
@@ -6269,6 +6465,15 @@ to-regex@^3.0.1:
     extend-shallow "^2.0.1"
     regex-not "^1.0.0"
 
+to-regex@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
+  dependencies:
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    regex-not "^1.0.2"
+    safe-regex "^1.1.0"
+
 tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.3.tgz#0b618a5565b6dea90bf3425d04d55edc475a7561"
@@ -6354,6 +6559,19 @@ uglifyjs-webpack-plugin@^0.4.6:
     uglify-js "^2.8.29"
     webpack-sources "^1.0.1"
 
+uglifyjs-webpack-plugin@^1.1.1:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.4.tgz#5eec941b2e9b8538be0a20fc6eda25b14c7c1043"
+  dependencies:
+    cacache "^10.0.4"
+    find-cache-dir "^1.0.0"
+    schema-utils "^0.4.5"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    uglify-es "^3.3.4"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
 uglifyjs-webpack-plugin@^1.1.8:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.1.8.tgz#1302fb9471a7daf3d0a5174da6d65f0f415e75ad"
@@ -6430,6 +6648,10 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
+upath@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
+
 urix@^0.1.0, urix@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
@@ -6532,6 +6754,14 @@ watchpack@^1.4.0:
     chokidar "^1.7.0"
     graceful-fs "^4.1.2"
 
+watchpack@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.5.0.tgz#231e783af830a22f8966f65c4c4bacc814072eed"
+  dependencies:
+    chokidar "^2.0.2"
+    graceful-fs "^4.1.2"
+    neo-async "^2.5.0"
+
 wbuf@^1.1.0, wbuf@^1.7.2:
   version "1.7.2"
   resolved "https://registry.yarnpkg.com/wbuf/-/wbuf-1.7.2.tgz#d697b99f1f59512df2751be42769c1580b5801fe"
@@ -6612,7 +6842,7 @@ webpack-sources@^1.0.1, webpack-sources@^1.1.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^3.10.0, webpack@^3.11.0:
+webpack@^3.10.0:
   version "3.11.0"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
   dependencies:
@@ -6639,6 +6869,30 @@ webpack@^3.10.0, webpack@^3.11.0:
     webpack-sources "^1.0.1"
     yargs "^8.0.2"
 
+webpack@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.2.0.tgz#a4f80807651a0e611bb09609600dc266262efcc1"
+  dependencies:
+    acorn "^5.0.0"
+    acorn-dynamic-import "^3.0.0"
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
+    chrome-trace-event "^0.1.1"
+    enhanced-resolve "^4.0.0"
+    eslint-scope "^3.7.1"
+    loader-runner "^2.3.0"
+    loader-utils "^1.1.0"
+    memory-fs "~0.4.1"
+    micromatch "^3.1.8"
+    mkdirp "~0.5.0"
+    neo-async "^2.5.0"
+    node-libs-browser "^2.0.0"
+    schema-utils "^0.4.2"
+    tapable "^1.0.0"
+    uglifyjs-webpack-plugin "^1.1.1"
+    watchpack "^1.5.0"
+    webpack-sources "^1.0.1"
+
 websocket-driver@>=0.5.1:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/websocket-driver/-/websocket-driver-0.7.0.tgz#0caf9d2d755d93aee049d4bdd0d3fe2cca2a24eb"
@@ -6712,6 +6966,10 @@ y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
+y18n@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
+
 yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"