diff --git a/yarn.lock b/yarn.lock
index b3b82cbe..c89de634 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2522,10 +2522,6 @@ cli-spinners@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
 
-cli-spinners@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-1.1.0.tgz#f1847b168844d917a671eb9d147e3df497c90d06"
-
 cli-truncate@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
@@ -3172,7 +3168,7 @@ date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
-debug@2.6.9, debug@^2.1.3, debug@^2.2.0, debug@^2.3.3, debug@^2.5.1, debug@^2.6.3, debug@^2.6.6, debug@^2.6.8, debug@^2.6.9:
+debug@2.6.9, debug@^2.1.3, debug@^2.2.0, debug@^2.3.3, debug@^2.6.6, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -3555,7 +3551,7 @@ electron-builder-lib@~20.2.0:
     semver "^5.5.0"
     temp-file "^3.1.1"
 
-electron-builder@^20.0.4, electron-builder@^20.2.0:
+electron-builder@^20.2.0:
   version "20.3.1"
   resolved "https://registry.yarnpkg.com/electron-builder/-/electron-builder-20.3.1.tgz#a05bc5cb729d416ee15122552dac3592f2ede4fd"
   dependencies:
@@ -3638,21 +3634,6 @@ electron-publish@20.2.0:
     lazy-val "^1.0.3"
     mime "^2.2.0"
 
-electron-rebuild@^1.7.3:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/electron-rebuild/-/electron-rebuild-1.7.3.tgz#24ae06ad9dd61cb7e4d688961f49118c40a110eb"
-  dependencies:
-    colors "^1.1.2"
-    debug "^2.6.3"
-    detect-libc "^1.0.3"
-    fs-extra "^3.0.1"
-    node-abi "^2.0.0"
-    node-gyp "^3.6.0"
-    ora "^1.2.0"
-    rimraf "^2.6.1"
-    spawn-rx "^2.0.10"
-    yargs "^7.0.2"
-
 electron-store@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/electron-store/-/electron-store-1.3.0.tgz#ee488a28a61fb982fd35b658fb9cb6331eb201f8"
@@ -3719,7 +3700,7 @@ electron-webpack@1.13.0:
     webpack-merge "^4.1.1"
     yargs "^11.0.0"
 
-electron@1.8.3, electron@^1.8.2:
+electron@1.8.3:
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/electron/-/electron-1.8.3.tgz#001416ea3a25ce594e317cb5531bc41eadd22f7f"
   dependencies:
@@ -4587,14 +4568,6 @@ fs-extra@^0.30.0:
     path-is-absolute "^1.0.0"
     rimraf "^2.2.8"
 
-fs-extra@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-3.0.1.tgz#3794f378c58b342ea7dbbb23095109c4b3b62291"
-  dependencies:
-    graceful-fs "^4.1.2"
-    jsonfile "^3.0.0"
-    universalify "^0.1.0"
-
 fs-extra@^4.0.1:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
@@ -6205,12 +6178,6 @@ jsonfile@^2.1.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
-jsonfile@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-3.0.1.tgz#a5ecc6f65f53f662c4415c7675a0331d0992ec66"
-  optionalDependencies:
-    graceful-fs "^4.1.6"
-
 jsonfile@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
@@ -6306,9 +6273,6 @@ ledger-test-library@KhalilBellakrid/ledger-test-library-nodejs#7d37482:
   dependencies:
     axios "^0.17.1"
     bindings "^1.3.0"
-    electron "^1.8.2"
-    electron-builder "^20.0.4"
-    electron-rebuild "^1.7.3"
     nan "^2.6.2"
     prebuild-install "^2.2.2"
 
@@ -6456,7 +6420,7 @@ lodash._getnative@^3.0.0:
   version "3.9.1"
   resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
 
-lodash.assign@^4.0.3, lodash.assign@^4.0.6, lodash.assign@^4.2.0:
+lodash.assign@^4.0.3, lodash.assign@^4.0.6:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
 
@@ -6530,7 +6494,7 @@ log-symbols@^1.0.2:
   dependencies:
     chalk "^1.0.0"
 
-log-symbols@^2.1.0, log-symbols@^2.2.0:
+log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
   dependencies:
@@ -6835,7 +6799,7 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.5, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+mkdirp@0.5, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
@@ -6930,7 +6894,7 @@ no-case@^2.2.0:
   dependencies:
     lower-case "^1.1.1"
 
-node-abi@^2.0.0, node-abi@^2.2.0:
+node-abi@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.3.0.tgz#f3d554d6ac72a9ee16f0f4dc9548db7c08de4986"
   dependencies:
@@ -6960,24 +6924,6 @@ node-forge@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.1.tgz#9da611ea08982f4b94206b3beb4cc9665f20c300"
 
-node-gyp@^3.6.0:
-  version "3.6.2"
-  resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.6.2.tgz#9bfbe54562286284838e750eac05295853fa1c60"
-  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-hid@^0.7.2:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/node-hid/-/node-hid-0.7.2.tgz#15025cdea2e9756aca2de7266529996d40e52c56"
@@ -7055,12 +7001,6 @@ noop-logger@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
 
-"nopt@2 || 3":
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
-  dependencies:
-    abbrev "1"
-
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -7120,7 +7060,7 @@ npm-which@^3.0.1:
     npm-path "^2.0.2"
     which "^1.2.10"
 
-"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.1, npmlog@^4.0.2, npmlog@^4.1.2:
+npmlog@^4.0.1, npmlog@^4.0.2, npmlog@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   dependencies:
@@ -7320,15 +7260,6 @@ ora@^0.2.3:
     cli-spinners "^0.1.2"
     object-assign "^4.0.1"
 
-ora@^1.2.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/ora/-/ora-1.4.0.tgz#884458215b3a5d4097592285f93321bb7a79e2e5"
-  dependencies:
-    chalk "^2.1.0"
-    cli-cursor "^2.1.0"
-    cli-spinners "^1.0.1"
-    log-symbols "^2.1.0"
-
 original@>=0.0.5:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/original/-/original-1.0.0.tgz#9147f93fa1696d04be61e01bd50baeaca656bd3b"
@@ -7361,7 +7292,7 @@ os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
-osenv@0, osenv@^0.1.4:
+osenv@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
   dependencies:
@@ -8753,33 +8684,6 @@ request-promise-native@^1.0.5:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-request@2, request@^2.45.0, request@^2.83.0:
-  version "2.83.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
-  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@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -8807,6 +8711,33 @@ request@2.81.0:
     tunnel-agent "^0.6.0"
     uuid "^3.0.0"
 
+request@^2.45.0, request@^2.83.0:
+  version "2.83.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
+  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"
+
 require-directory@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
@@ -8943,7 +8874,7 @@ rx@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
 
-rxjs@^5.1.1, rxjs@^5.4.2:
+rxjs@^5.4.2:
   version "5.5.6"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
   dependencies:
@@ -9020,10 +8951,6 @@ semver-diff@^2.0.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
-semver@~5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
-
 send@0.16.1:
   version "0.16.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.16.1.tgz#a70e1ca21d1382c11d0d9f6231deb281080d7ab3"
@@ -9341,14 +9268,6 @@ spawn-command@^0.0.2-1:
   version "0.0.2-1"
   resolved "https://registry.yarnpkg.com/spawn-command/-/spawn-command-0.0.2-1.tgz#62f5e9466981c1b796dc5929937e11c9c6921bd0"
 
-spawn-rx@^2.0.10:
-  version "2.0.12"
-  resolved "https://registry.yarnpkg.com/spawn-rx/-/spawn-rx-2.0.12.tgz#b6285294499426089beea0c3c1ec32d7fc57a376"
-  dependencies:
-    debug "^2.5.1"
-    lodash.assign "^4.2.0"
-    rxjs "^5.1.1"
-
 spdx-correct@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.0.tgz#05a5b4d7153a195bc92c3c425b69f3b2a9524c82"
@@ -9782,7 +9701,7 @@ tar-stream@^1.1.2:
     readable-stream "^2.0.0"
     xtend "^4.0.0"
 
-tar@^2.0.0, tar@^2.2.1:
+tar@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
   dependencies:
@@ -10523,7 +10442,7 @@ which-pm-runs@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
 
-which@1, which@^1.2.10, which@^1.2.12, which@^1.2.9, which@^1.3.0:
+which@^1.2.10, which@^1.2.12, which@^1.2.9, which@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
   dependencies:
@@ -10680,12 +10599,6 @@ yargs-parser@^4.2.0:
   dependencies:
     camelcase "^3.0.0"
 
-yargs-parser@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
-  dependencies:
-    camelcase "^3.0.0"
-
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
@@ -10775,24 +10688,6 @@ yargs@^4.2.0:
     y18n "^3.2.1"
     yargs-parser "^2.4.1"
 
-yargs@^7.0.2:
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-7.1.0.tgz#6ba318eb16961727f5d284f8ea003e8d6154d0c8"
-  dependencies:
-    camelcase "^3.0.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^5.0.0"
-
 yargs@^8.0.2:
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"