diff --git a/package.json b/package.json
index 50671f6..2ee7562 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "gatsby-transformer-remark": "^6.12.0",
     "gatsby-transformer-sharp": "^5.12.0",
     "intersection-observer": "^0.12.2",
-    "postcss": "^8.4.29",
+    "postcss": "^8.4.31",
     "prop-types": "^15.8.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
diff --git a/yarn.lock b/yarn.lock
index 3a6d5d1..3631d40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11325,19 +11325,10 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.0.2, 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@^8.2.15, postcss@^8.2.9, postcss@^8.3.11, postcss@^8.4.21:
-  version "8.4.23"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.23.tgz#df0aee9ac7c5e53e1075c24a3613496f9e6552ab"
-  integrity sha512-bQ3qMcpF6A/YjR55xtoTr0jGOlnPOKAIMdOWiv0EIT6HVPEaJiJB4NLljSbiHoC2RX7DN5Uvjtpbg1NPdwv1oA==
-  dependencies:
-    nanoid "^3.3.6"
-    picocolors "^1.0.0"
-    source-map-js "^1.0.2"
-
-postcss@^8.4.23, postcss@^8.4.29:
-  version "8.4.29"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.29.tgz#33bc121cf3b3688d4ddef50be869b2a54185a1dd"
-  integrity sha512-cbI+jaqIeu/VGqXEarWkRCCffhjgXc0qjBtXpqJhTBohMUjUQnbBr0xqX3vEKudc4iviTewcJo5ajcec5+wdJw==
+postcss@^8.2.15, postcss@^8.2.9, postcss@^8.3.11, postcss@^8.4.21, postcss@^8.4.23, 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"