diff --git a/yarn.lock b/yarn.lock
index a1e9483be..6603d8845 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4339,9 +4339,9 @@ postcss@^6.0.9:
     supports-color "^5.4.0"
 
 postcss@^7.0.11, postcss@^7.0.18, postcss@^7.0.21, postcss@^7.0.27:
-  version "7.0.28"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.28.tgz#d349ced7743475717ba91f6810efb58c51fb5dbb"
-  integrity sha512-YU6nVhyWIsVtlNlnAj1fHTsUKW5qxm3KEgzq2Jj6KTEFOTK8QWR12eIDvrlWhiSTK8WIBFTBhOJV4DY6dUuEbw==
+  version "7.0.29"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.29.tgz#d3a903872bd52280b83bce38cdc83ce55c06129e"
+  integrity sha512-ba0ApvR3LxGvRMMiUa9n0WR4HjzcYm7tS+ht4/2Nd0NLtHpPIH77fuB9Xh1/yJVz9O/E/95Y/dn8ygWsyffXtw==
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"