diff --git a/yarn.lock b/yarn.lock
index 9263caf..750d5f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -274,7 +274,7 @@ acorn@^5.3.0, acorn@^5.5.0:
 
 adjust-sourcemap-loader@^1.1.0:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/adjust-sourcemap-loader/-/adjust-sourcemap-loader-1.2.0.tgz#e33fde95e50db9f2a802e3647e311d2fc5000c69"
+  resolved "https://registry.npmjs.org/adjust-sourcemap-loader/-/adjust-sourcemap-loader-1.2.0.tgz#e33fde95e50db9f2a802e3647e311d2fc5000c69"
   dependencies:
     assert "^1.3.0"
     camelcase "^1.2.1"
@@ -1820,7 +1820,7 @@ content-type@~1.0.4:
 
 convert-source-map@^0.3.3:
   version "0.3.5"
-  resolved "http://registry.npmjs.org/convert-source-map/-/convert-source-map-0.3.5.tgz#f1d802950af7dd2631a1febe0596550c86ab3190"
+  resolved "https://registry.npmjs.org/convert-source-map/-/convert-source-map-0.3.5.tgz#f1d802950af7dd2631a1febe0596550c86ab3190"
 
 convert-source-map@^1.5.0:
   version "1.5.1"
@@ -1985,7 +1985,7 @@ css-loader@^0.28.7:
 
 css-select@^1.1.0:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
+  resolved "https://registry.npmjs.org/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
   dependencies:
     boolbase "~1.0.0"
     css-what "2.1"
@@ -2073,7 +2073,7 @@ cyclist@~0.2.2:
 
 d@1:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
+  resolved "https://registry.npmjs.org/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
   dependencies:
     es5-ext "^0.10.9"
 
@@ -2272,8 +2272,8 @@ dns-equal@^1.0.0:
   resolved "https://registry.yarnpkg.com/dns-equal/-/dns-equal-1.0.0.tgz#b39e7f1da6eb0a75ba9c17324b34753c47e0654d"
 
 dns-packet@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/dns-packet/-/dns-packet-1.3.1.tgz#12aa426981075be500b910eedcd0b47dd7deda5a"
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/dns-packet/-/dns-packet-1.3.4.tgz#e3455065824a2507ba886c55a89963bb107dec6f"
   dependencies:
     ip "^1.1.0"
     safe-buffer "^5.0.1"
@@ -3346,7 +3346,7 @@ gzip-size@^4.1.0:
 
 handle-thing@^1.2.5:
   version "1.2.5"
-  resolved "http://registry.npmjs.org/handle-thing/-/handle-thing-1.2.5.tgz#fd7aad726bf1a5fd16dfc29b2f7a6601d27139c4"
+  resolved "https://registry.npmjs.org/handle-thing/-/handle-thing-1.2.5.tgz#fd7aad726bf1a5fd16dfc29b2f7a6601d27139c4"
 
 har-schema@^2.0.0:
   version "2.0.0"
@@ -3558,7 +3558,7 @@ html-tags@^2.0.0:
 
 html-webpack-plugin@^3.2.0:
   version "3.2.0"
-  resolved "http://registry.npmjs.org/html-webpack-plugin/-/html-webpack-plugin-3.2.0.tgz#b01abbd723acaaa7b37b6af4492ebda03d9dd37b"
+  resolved "https://registry.npmjs.org/html-webpack-plugin/-/html-webpack-plugin-3.2.0.tgz#b01abbd723acaaa7b37b6af4492ebda03d9dd37b"
   dependencies:
     html-minifier "^3.2.3"
     loader-utils "^0.2.16"
@@ -3581,7 +3581,7 @@ htmlparser2@^3.9.2:
 
 htmlparser2@~3.3.0:
   version "3.3.0"
-  resolved "http://registry.npmjs.org/htmlparser2/-/htmlparser2-3.3.0.tgz#cc70d05a59f6542e43f0e685c982e14c924a9efe"
+  resolved "https://registry.npmjs.org/htmlparser2/-/htmlparser2-3.3.0.tgz#cc70d05a59f6542e43f0e685c982e14c924a9efe"
   dependencies:
     domelementtype "1"
     domhandler "2.1"
@@ -3607,7 +3607,7 @@ http-parser-js@>=0.4.0:
 
 http-proxy-middleware@~0.18.0:
   version "0.18.0"
-  resolved "http://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
+  resolved "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
   dependencies:
     http-proxy "^1.16.2"
     is-glob "^4.0.0"
@@ -5049,7 +5049,7 @@ neo-async@^2.5.0:
 
 next-tick@1:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
+  resolved "https://registry.npmjs.org/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
 
 nice-try@^1.0.4:
   version "1.0.5"
@@ -5412,7 +5412,7 @@ p-finally@^1.0.0:
 
 p-is-promise@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
+  resolved "https://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
 
 p-limit@^1.1.0:
   version "1.1.0"
@@ -6645,14 +6645,18 @@ rxjs@^6.1.0:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-safe-buffer@5.1.2, safe-buffer@^5.1.2:
+safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"