diff --git a/yarn.lock b/yarn.lock
index 06d4e02..c96dee6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -752,8 +752,8 @@ async-each@^1.0.0:
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
 async-limiter@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
 
 async@^1.4.0:
   version "1.5.2"
@@ -2152,7 +2152,7 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.2, chalk@^2.4.1:
 
 chalk@~0.4.0:
   version "0.4.0"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
   dependencies:
     ansi-styles "~1.0.0"
     has-color "~0.1.0"
@@ -5978,7 +5978,7 @@ once@^1.3.0, once@^1.3.1, once@^1.4.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 onetime@^2.0.0:
   version "2.0.1"
@@ -7316,7 +7316,7 @@ rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
 
 rimraf@~2.2.6:
   version "2.2.8"
-  resolved "http://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
+  resolved "https://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
 
 ripemd160@^2.0.0, ripemd160@^2.0.1:
   version "2.0.2"
@@ -8591,8 +8591,8 @@ write@^0.2.1:
     mkdirp "^0.5.1"
 
 ws@^6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-6.0.0.tgz#eaa494aded00ac4289d455bac8d84c7c651cef35"
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-6.2.2.tgz#dd5cdbd57a9979916097652d78f1cc5faea0c32e"
   dependencies:
     async-limiter "~1.0.0"