diff --git a/yarn.lock b/yarn.lock
index 4bac25d..a6f7b57 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -366,11 +366,6 @@ bignumber.js@^7.0.0:
   resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-7.2.1.tgz#80c048759d826800807c4bfd521e50edbba57a5f"
   integrity sha512-S4XzBk5sMB+Rcb/LNcpzXr57VRTxgAvaAEDAl1AwRx27j00hT84O6OkteE7u8UB3NuaaygCRrEpqox4uDOrbdQ==
 
-bluebird@^3.5.0:
-  version "3.5.3"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
-  integrity sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==
-
 body-parser@1.18.3, body-parser@^1.18.3:
   version "1.18.3"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.3.tgz#5b292198ffdd553b3a0f20ded0592b956955c8b4"
@@ -1493,9 +1488,9 @@ node-datetime@^2.1.2:
   integrity sha512-eev1F0IPKSu3zvASMtH8ic4znGpfXdq9yc8yc/EVx6bk57u7bS2iZKVZ8ll1ZeH/IEQ3qFb04FB70PCNXSIp4w==
 
 node-fetch@^2.2.0, node-fetch@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.3.0.tgz#1a1d940bbfb916a1d3e0219f037e89e71f8c5fa5"
-  integrity sha512-MOd8pV3fxENbryESLgVIeaGKrdl+uaYhCSSVkjeOb/31/njTpcis5aWfdqgNlHIrKOLRbMnfPINPOML2CIFeXA==
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
+  integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
 
 node-forge@^0.8.0:
   version "0.8.1"
@@ -1518,11 +1513,6 @@ node-pre-gyp@^0.12.0:
     semver "^5.3.0"
     tar "^4"
 
-node-uuid@^1.4.2:
-  version "1.4.8"
-  resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
-  integrity sha1-sEDrCSOWivq/jTL7HxfxFn/auQc=
-
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -1600,11 +1590,6 @@ optjs@~3.2.2:
   resolved "https://registry.yarnpkg.com/optjs/-/optjs-3.2.2.tgz#69a6ce89c442a44403141ad2f9b370bd5bb6f4ee"
   integrity sha1-aabOicRCpEQDFBrS+bNwvVu29O4=
 
-opus@^0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/opus/-/opus-0.0.0.tgz#5731c2798b5a0d1451cac6c1ecc5243eacdb32fa"
-  integrity sha1-VzHCeYtaDRRRysbB7MUkPqzbMvo=
-
 os-homedir@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
@@ -1690,11 +1675,6 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
-prism-media@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/prism-media/-/prism-media-1.0.1.tgz#3d033c214f9d79ca157bae7985938be65f521c02"
-  integrity sha512-Unmeibfk7b8wiiQFPlCC0GgCRaAejSpe2ElgfDkMi9ZmsqzeTbUnmiLNjyqONeKK+HMYINYHOgJFox5l7FU7YA==
-
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -1869,29 +1849,7 @@ readable-stream@^2.0.0, readable-stream@^2.0.6, readable-stream@~2.3.6:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readline@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/readline/-/readline-1.3.0.tgz#c580d77ef2cfc8752b132498060dc9793a7ac01c"
-  integrity sha1-xYDXfvLPyHUrEySYBg3JeTp6wBw=
-
-request-promise-core@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.2.tgz#339f6aababcafdb31c799ff158700336301d3346"
-  integrity sha512-UHYyq1MO8GsefGEt7EprS8UrXsm1TxEvFUX1IMTuSLU2Rh7fTIdFtl8xD7JiEYiWU2dl+NYAjCTksTehQUxPag==
-  dependencies:
-    lodash "^4.17.11"
-
-request-promise@^4.2.4:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/request-promise/-/request-promise-4.2.4.tgz#1c5ed0d71441e38ad58c7ce4ea4ea5b06d54b310"
-  integrity sha512-8wgMrvE546PzbR5WbYxUQogUnUDfM0S7QIFZMID+J73vdFARkFy+HElj4T+MWYhpXwlLp0EQ8Zoj8xUA0he4Vg==
-  dependencies:
-    bluebird "^3.5.0"
-    request-promise-core "1.1.2"
-    stealthy-require "^1.1.1"
-    tough-cookie "^2.3.3"
-
-request@^2.40.0, request@^2.88.0:
+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==
@@ -2058,11 +2016,6 @@ statuses@~1.4.0:
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
   integrity sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew==
 
-stealthy-require@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
-  integrity sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=
-
 stream-events@^1.0.1, stream-events@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/stream-events/-/stream-events-1.0.5.tgz#bbc898ec4df33a4902d892333d47da9bf1c406d5"
@@ -2373,14 +2326,6 @@ yallist@^3.0.0, yallist@^3.0.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
   integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
 
-yandex-speech@^0.0.14:
-  version "0.0.14"
-  resolved "https://registry.yarnpkg.com/yandex-speech/-/yandex-speech-0.0.14.tgz#5035ad5749cec7e8ffb887399a2fe4985d2f2e02"
-  integrity sha512-4vgfwA8ExZoGkLygpP+7xVx/qvJvebIw583IsYfv5FTaurxHy4Dum7R8MAnyretSe0472d0u7KvFt8BUnnB2eg==
-  dependencies:
-    node-uuid "^1.4.2"
-    request "^2.40.0"
-
 yargs@^3.10.0:
   version "3.32.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"