diff --git a/site/package-lock.json b/site/package-lock.json
index 241803d..4d85d94 100644
--- a/site/package-lock.json
+++ b/site/package-lock.json
@@ -16,7 +16,7 @@
         "common-tags": "^1.8.2",
         "gzip-size": "^6.0.0",
         "js-beautify": "^1.14.6",
-        "purecss": "^2.1.0",
+        "purecss": "^2.2.0",
         "react": "^17.0.2",
         "react-dom": "^17.0.2",
         "react-syntax-highlighter": "^15.5.0",
@@ -9444,9 +9444,9 @@
       }
     },
     "node_modules/purecss": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/purecss/-/purecss-2.1.0.tgz",
-      "integrity": "sha512-QIgWhat8QkHTXdejFJNwZuw0pZ7Mj0MHILHNz8sV6HZBfbWtHpW3b1+Q1D6W/9x4chFhaq9u4+Uk8YbwELzsXg=="
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/purecss/-/purecss-2.2.0.tgz",
+      "integrity": "sha512-jEPrAALLgE+InDARWdPDt0AkZ1Bi0yXxHj4BOwWImq06sGIDe5CagPyS6Z9WGyEgMuZonrrhinInJ80nAHTIUA=="
     },
     "node_modules/qs": {
       "version": "6.10.3",
@@ -19144,9 +19144,9 @@
       }
     },
     "purecss": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/purecss/-/purecss-2.1.0.tgz",
-      "integrity": "sha512-QIgWhat8QkHTXdejFJNwZuw0pZ7Mj0MHILHNz8sV6HZBfbWtHpW3b1+Q1D6W/9x4chFhaq9u4+Uk8YbwELzsXg=="
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/purecss/-/purecss-2.2.0.tgz",
+      "integrity": "sha512-jEPrAALLgE+InDARWdPDt0AkZ1Bi0yXxHj4BOwWImq06sGIDe5CagPyS6Z9WGyEgMuZonrrhinInJ80nAHTIUA=="
     },
     "qs": {
       "version": "6.10.3",
diff --git a/site/package.json b/site/package.json
index e77696b..2782450 100644
--- a/site/package.json
+++ b/site/package.json
@@ -20,7 +20,7 @@
     "common-tags": "^1.8.2",
     "gzip-size": "^6.0.0",
     "js-beautify": "^1.14.6",
-    "purecss": "^2.1.0",
+    "purecss": "^2.2.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-syntax-highlighter": "^15.5.0",