diff --git a/yarn.lock b/yarn.lock
index 22d1eeec9..c17dd82ce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1238,6 +1238,11 @@ bail@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/bail/-/bail-1.0.3.tgz#63cfb9ddbac829b02a3128cd53224be78e6c21a3"
 
+balanced-match@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.1.0.tgz#b504bd05869b39259dd0c5efc35d843176dccc4a"
+  integrity sha1-tQS9BYabOSWd0MXvw12EMXbczEo=
+
 balanced-match@^0.4.2:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
@@ -2057,6 +2062,16 @@ crypto-browserify@^3.11.0:
     public-encrypt "^4.0.0"
     randombytes "^2.0.0"
 
+css-color-function@~1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/css-color-function/-/css-color-function-1.3.3.tgz#8ed24c2c0205073339fafa004bc8c141fccb282e"
+  integrity sha1-jtJMLAIFBzM5+voAS8jBQfzLKC4=
+  dependencies:
+    balanced-match "0.1.0"
+    color "^0.11.0"
+    debug "^3.1.0"
+    rgb "~0.1.0"
+
 css-color-names@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
@@ -5706,6 +5721,16 @@ postcss-calc@^5.2.0:
     postcss-message-helpers "^2.0.0"
     reduce-css-calc "^1.2.6"
 
+postcss-color-function@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-color-function/-/postcss-color-function-4.0.1.tgz#402b3f2cebc3f6947e618fb6be3654fbecef6444"
+  integrity sha1-QCs/LOvD9pR+YY+2vjZU++zvZEQ=
+  dependencies:
+    css-color-function "~1.3.3"
+    postcss "^6.0.1"
+    postcss-message-helpers "^2.0.0"
+    postcss-value-parser "^3.3.0"
+
 postcss-colormin@^2.1.8:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-2.2.2.tgz#6631417d5f0e909a3d7ec26b24c8a8d1e4f96e4b"
@@ -6920,6 +6945,11 @@ ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
 
+rgb@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/rgb/-/rgb-0.1.0.tgz#be27b291e8feffeac1bd99729721bfa40fc037b5"
+  integrity sha1-vieykej+/+rBvZlylyG/pA/AN7U=
+
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"