diff --git a/yarn.lock b/yarn.lock
index 8a33631..d44010a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -908,11 +908,6 @@ cliui@^5.0.0:
     strip-ansi "^5.2.0"
     wrap-ansi "^5.1.0"
 
-co@^4.6.0:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
-  integrity sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=
-
 coffeescript@2:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/coffeescript/-/coffeescript-2.5.1.tgz#b2442a1f2c806139669534a54adc35010559d16a"
@@ -1818,9 +1813,9 @@ minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.4:
     brace-expansion "^1.1.7"
 
 minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.5:
-  version "1.2.5"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
-  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
+  integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
 
 mkdirp@0.5.5, mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.5"