diff --git a/ui/yarn.lock b/ui/yarn.lock
index 47070bc1..9934b15b 100644
--- a/ui/yarn.lock
+++ b/ui/yarn.lock
@@ -3523,7 +3523,7 @@ lodash.words@^3.0.0:
   dependencies:
     lodash._root "^3.0.0"
 
-lodash@^4.0.0, lodash@^4.15.0, lodash@^4.16.2, lodash@^4.2.0, lodash@^4.3.0, lodash@^4.6.1:
+lodash@^4.0.0, lodash@^4.13.1, lodash@^4.15.0, lodash@^4.16.2, lodash@^4.2.0, lodash@^4.3.0, lodash@^4.6.1:
   version "4.16.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.16.4.tgz#01ce306b9bad1319f2a5528674f88297aeb70127"
 
@@ -4214,6 +4214,13 @@ postcss-apply@^0.3.0:
     balanced-match "^0.4.1"
     postcss "^5.0.21"
 
+postcss-at-rules-variables@0.0.25:
+  version "0.0.25"
+  resolved "https://registry.yarnpkg.com/postcss-at-rules-variables/-/postcss-at-rules-variables-0.0.25.tgz#72f813d36bc3621f8d5c92e0427071f829663594"
+  dependencies:
+    lodash "^4.13.1"
+    postcss "^5.0.21"
+
 postcss-attribute-case-insensitive@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-1.0.1.tgz#ceb73777e106167eb233f1938c9bd9f2e697308d"
@@ -4391,6 +4398,13 @@ postcss-font-variant@^2.0.0:
   dependencies:
     postcss "^5.0.4"
 
+postcss-for@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/postcss-for/-/postcss-for-2.1.1.tgz#841378c0ef909d50e1980d5aa71e6a340e728fcd"
+  dependencies:
+    postcss "^5.0.0"
+    postcss-simple-vars "^2.0.0"
+
 postcss-initial@^1.3.1:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/postcss-initial/-/postcss-initial-1.5.2.tgz#61eb5ad871e7991aadfb3f497b16fe61aea92ffb"
@@ -4634,6 +4648,12 @@ postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
+postcss-simple-vars@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-simple-vars/-/postcss-simple-vars-2.0.0.tgz#d0a1091b0da22b79507028f7b22b976c0a60b8d5"
+  dependencies:
+    postcss "^5.0.21"
+
 postcss-simple-vars@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/postcss-simple-vars/-/postcss-simple-vars-3.0.0.tgz#1fa4ccb4b7151d9f0d52fb8ea19a15c1319599d6"