diff --git a/package-lock.json b/package-lock.json
index 2644f9e..b5aa089 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "gatsby-plugin-manifest": "3.10.0",
         "gatsby-plugin-matomo": "0.10.0",
         "gatsby-plugin-offline": "4.10.0",
-        "gatsby-plugin-postcss": "4.10.0",
+        "gatsby-plugin-postcss": "4.13.0",
         "gatsby-plugin-react-helmet": "4.10.0",
         "gatsby-plugin-sharp": "3.10.2",
         "gatsby-source-filesystem": "3.11.0",
@@ -11611,11 +11611,11 @@
       }
     },
     "node_modules/gatsby-plugin-postcss": {
-      "version": "4.10.0",
-      "resolved": "https://registry.npmjs.org/gatsby-plugin-postcss/-/gatsby-plugin-postcss-4.10.0.tgz",
-      "integrity": "sha512-4Jhn66Csw6iNEJUqReLXp4fXtD8sfx359rVX2RhtM8tb7oOhXOkQMxisL8hC8XiYkuxJYsGSotNKyyugWb6Rdg==",
+      "version": "4.13.0",
+      "resolved": "https://registry.npmjs.org/gatsby-plugin-postcss/-/gatsby-plugin-postcss-4.13.0.tgz",
+      "integrity": "sha512-XRZuRPxFHa8hAiHPPQadrTmEipHmc6vKouypZD4+vBi6f1M/8RhiTTSU3ciSd+/m7xEsbvl9H/yYT7652JJsVQ==",
       "dependencies": {
-        "@babel/runtime": "^7.14.6",
+        "@babel/runtime": "^7.14.8",
         "postcss-loader": "^4.3.0"
       },
       "engines": {
@@ -36362,11 +36362,11 @@
       }
     },
     "gatsby-plugin-postcss": {
-      "version": "4.10.0",
-      "resolved": "https://registry.npmjs.org/gatsby-plugin-postcss/-/gatsby-plugin-postcss-4.10.0.tgz",
-      "integrity": "sha512-4Jhn66Csw6iNEJUqReLXp4fXtD8sfx359rVX2RhtM8tb7oOhXOkQMxisL8hC8XiYkuxJYsGSotNKyyugWb6Rdg==",
+      "version": "4.13.0",
+      "resolved": "https://registry.npmjs.org/gatsby-plugin-postcss/-/gatsby-plugin-postcss-4.13.0.tgz",
+      "integrity": "sha512-XRZuRPxFHa8hAiHPPQadrTmEipHmc6vKouypZD4+vBi6f1M/8RhiTTSU3ciSd+/m7xEsbvl9H/yYT7652JJsVQ==",
       "requires": {
-        "@babel/runtime": "^7.14.6",
+        "@babel/runtime": "^7.14.8",
         "postcss-loader": "^4.3.0"
       },
       "dependencies": {
diff --git a/package.json b/package.json
index 1c71aa2..0f040ed 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "gatsby-plugin-manifest": "3.10.0",
     "gatsby-plugin-matomo": "0.10.0",
     "gatsby-plugin-offline": "4.10.0",
-    "gatsby-plugin-postcss": "4.10.0",
+    "gatsby-plugin-postcss": "4.13.0",
     "gatsby-plugin-react-helmet": "4.10.0",
     "gatsby-plugin-sharp": "3.10.2",
     "gatsby-source-filesystem": "3.11.0",