diff --git a/yarn.lock b/yarn.lock
index ecfd3a7..2a08fce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -706,8 +706,8 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.4.1, chalk@^2.4.2:
     supports-color "^5.3.0"
 
 chownr@^1.1.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.3.tgz#42d837d5239688d55f303003a508230fa6727142"
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
 
 ci-info@^2.0.0:
   version "2.0.0"
@@ -2124,14 +2124,14 @@ minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimist@0.0.8:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-
 minimist@^1.1.1, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+
 minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
@@ -2157,10 +2157,10 @@ mixin-deep@^1.2.0:
     is-extendable "^1.0.1"
 
 mkdirp@0.x, mkdirp@^0.5.0, mkdirp@^0.5.1:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
   dependencies:
-    minimist "0.0.8"
+    minimist "^1.2.5"
 
 ms@2.0.0:
   version "2.0.0"
@@ -2760,8 +2760,8 @@ rsvp@^4.8.4:
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-4.8.5.tgz#c8f155311d167f68f21e168df71ec5b083113734"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.2:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
 
 safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
@@ -3065,8 +3065,8 @@ symbol-tree@^3.2.2:
   resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.4.tgz#430637d248ba77e078883951fb9aa0eed7c63fa2"
 
 tar@^4:
-  version "4.4.13"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
+  version "4.4.15"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.15.tgz#3caced4f39ebd46ddda4d6203d48493a919697f8"
   dependencies:
     chownr "^1.1.1"
     fs-minipass "^1.2.5"