diff --git a/package.json b/package.json
index 0426fde4..5d62f80f 100644
--- a/package.json
+++ b/package.json
@@ -197,7 +197,7 @@
     "mini-css-extract-plugin": "^2.1.0",
     "node-polyfill-webpack-plugin": "^2.0.1",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.2.15",
+    "postcss": "^8.4.31",
     "postcss-loader": "^7.3.0",
     "postcss-preset-env": "^6.7.0",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index 9a84cf67..f60c69cd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7942,10 +7942,10 @@ postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.32, postcss@^7.0.
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.2.15, postcss@^8.3.5, postcss@^8.4.21, postcss@^8.4.24:
-  version "8.4.25"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.25.tgz#4a133f5e379eda7f61e906c3b1aaa9b81292726f"
-  integrity sha512-7taJ/8t2av0Z+sQEvNzCkpDynl0tX3uJMCODi6nT3PfASC7dYCWV9aQ+uiCf+KBD4SEFcu+GvJdGdwzQ6OSjCw==
+postcss@^8.2.15, postcss@^8.3.5, postcss@^8.4.21, postcss@^8.4.24, postcss@^8.4.31:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"
@@ -9122,16 +9122,11 @@ socks@^2.3.3:
     ip "^2.0.0"
     smart-buffer "^4.2.0"
 
-"source-map-js@>=0.6.2 <2.0.0", source-map-js@^1.0.2:
+"source-map-js@>=0.6.2 <2.0.0", source-map-js@^1.0.1, source-map-js@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
   integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
 
-source-map-js@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.1.tgz#a1741c131e3c77d048252adfa24e23b908670caf"
-  integrity sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==
-
 source-map-support@~0.5.20:
   version "0.5.21"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"