diff --git a/core/package.json b/core/package.json
index 82caaa39..94183363 100644
--- a/core/package.json
+++ b/core/package.json
@@ -234,7 +234,7 @@
     "ncp": "2.0.0",
     "node-fetch": "3.3.0",
     "npm-run-all": "4.1.5",
-    "postcss": "8.4.19",
+    "postcss": "8.4.20",
     "postcss-scss": "4.0.6",
     "prettier": "2.8.1",
     "process": "0.11.10",
diff --git a/core/yarn.lock b/core/yarn.lock
index 5883e502..479dbffd 100644
--- a/core/yarn.lock
+++ b/core/yarn.lock
@@ -9250,7 +9250,16 @@ postcss-value-parser@^4.0.2, postcss-value-parser@^4.1.0, postcss-value-parser@^
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@8.4.19, postcss@^8.4.18:
+postcss@8.4.20:
+  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"
+    source-map-js "^1.0.2"
+
+postcss@^8.4.18:
   version "8.4.19"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
   integrity sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==