diff --git a/yarn.lock b/yarn.lock
index b744a074b9..53819cebb0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4247,9 +4247,9 @@ postcss@^7.0.36:
     source-map "^0.6.1"
 
 postcss@^8.1.10, postcss@^8.2.15, postcss@^8.4, postcss@^8.4.14:
-  version "8.4.19"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
-  integrity sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==
+  version "8.4.20"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.20.tgz#64c52f509644cecad8567e949f4081d98349dc56"
+  integrity sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"