diff --git a/core/yarn.lock b/core/yarn.lock
index 244960e63ec..9f340914caf 100644
--- a/core/yarn.lock
+++ b/core/yarn.lock
@@ -4135,7 +4135,16 @@ postcss@^8.3.11:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@^8.4.16, postcss@^8.4.18:
+postcss@^8.4.16:
+  version "8.4.19"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
+  integrity sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==
+  dependencies:
+    nanoid "^3.3.4"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
+
+postcss@^8.4.18:
   version "8.4.18"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.18.tgz#6d50046ea7d3d66a85e0e782074e7203bc7fbca2"
   integrity sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==