diff --git a/yarn.lock b/yarn.lock
index 217c977..fee737f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -124,7 +124,7 @@ bcrypt-pbkdf@^1.0.0:
 
 bluebird@3.0.5:
   version "3.0.5"
-  resolved "http://registry.npmjs.org/bluebird/-/bluebird-3.0.5.tgz#2ff9d07c9b3edb29d6d280fe07528365e7ecd392"
+  resolved "https://registry.npmjs.org/bluebird/-/bluebird-3.0.5.tgz#2ff9d07c9b3edb29d6d280fe07528365e7ecd392"
 
 boom@4.x.x:
   version "4.3.1"
@@ -800,8 +800,8 @@ js-tokens@^4.0.0:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
 
 js-yaml@^3.12.0:
-  version "3.12.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
+  version "3.14.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -848,7 +848,7 @@ levn@^0.3.0, levn@~0.3.0:
 
 load-json-file@^2.0.0:
   version "2.0.0"
-  resolved "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  resolved "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -896,11 +896,11 @@ minimatch@^3.0.3, minimatch@^3.0.4:
 
 minimist@0.0.8:
   version "0.0.8"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 mkdirp@^0.5.1:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
@@ -1109,7 +1109,7 @@ read-pkg@^2.0.0:
 
 readable-stream@~1.0.17:
   version "1.0.34"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.1"
@@ -1213,7 +1213,7 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.1:
 
 sax@~0.6.0:
   version "0.6.1"
-  resolved "http://registry.npmjs.org/sax/-/sax-0.6.1.tgz#563b19c7c1de892e09bfc4f2fc30e3c27f0952b9"
+  resolved "https://registry.npmjs.org/sax/-/sax-0.6.1.tgz#563b19c7c1de892e09bfc4f2fc30e3c27f0952b9"
 
 "semver@2 || 3 || 4 || 5", semver@^5.5.0, semver@^5.5.1:
   version "5.5.1"
@@ -1329,7 +1329,7 @@ supports-color@^5.3.0:
 
 table@^4.0.3:
   version "4.0.3"
-  resolved "http://registry.npmjs.org/table/-/table-4.0.3.tgz#00b5e2b602f1794b9acaf9ca908a76386a7813bc"
+  resolved "https://registry.npmjs.org/table/-/table-4.0.3.tgz#00b5e2b602f1794b9acaf9ca908a76386a7813bc"
   dependencies:
     ajv "^6.0.1"
     ajv-keywords "^3.0.0"
@@ -1344,7 +1344,7 @@ text-table@^0.2.0:
 
 through@^2.3.6:
   version "2.3.8"
-  resolved "http://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  resolved "https://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
 tiny-emitter@1.0.1:
   version "1.0.1"