diff --git a/package-lock.json b/package-lock.json
index 9704e0df..705880f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "yamljs": "^0.3.0"
       },
       "devDependencies": {
-        "@fullhuman/postcss-purgecss": "^3.1.3",
+        "@fullhuman/postcss-purgecss": "^5.0.0",
         "@vue/compiler-sfc": "^3.3.2",
         "api-spec-converter": "^2.12.0",
         "autoprefixer": "^10.4.13",
@@ -224,12 +224,15 @@
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-      "resolved": "https://registry.npmjs.org/@fullhuman/postcss-purgecss/-/postcss-purgecss-3.1.3.tgz",
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+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@fullhuman/postcss-purgecss/-/postcss-purgecss-5.0.0.tgz",
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       "dev": true,
       "dependencies": {
-        "purgecss": "^3.1.3"
+        "purgecss": "^5.0.0"
+      },
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+        "postcss": "^8.0.0"
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@@ -5877,15 +5880,15 @@
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-      "resolved": "https://registry.npmjs.org/purgecss/-/purgecss-3.1.3.tgz",
-      "integrity": "sha512-hRSLN9mguJ2lzlIQtW4qmPS2kh6oMnA9RxdIYK8sz18QYqd6ePp4GNDl18oWHA1f2v2NEQIh51CO8s/E3YGckQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/purgecss/-/purgecss-5.0.0.tgz",
+      "integrity": "sha512-RAnuxrGuVyLLTr8uMbKaxDRGWMgK5CCYDfRyUNNcaz5P3kGgD2b7ymQGYEyo2ST7Tl/ScwFgf5l3slKMxHSbrw==",
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-        "commander": "^6.0.0",
-        "glob": "^7.0.0",
-        "postcss": "^8.2.1",
-        "postcss-selector-parser": "^6.0.2"
+        "commander": "^9.0.0",
+        "glob": "^8.0.3",
+        "postcss": "^8.4.4",
+        "postcss-selector-parser": "^6.0.7"
       },
       "bin": {
         "purgecss": "bin/purgecss.js"
@@ -5929,13 +5932,53 @@
         "purgecss": "bin/purgecss.js"
       }
     },
+    "node_modules/purgecss/node_modules/brace-expansion": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
     "node_modules/purgecss/node_modules/commander": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-6.2.1.tgz",
-      "integrity": "sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==",
+      "version": "9.5.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-9.5.0.tgz",
+      "integrity": "sha512-KRs7WVDKg86PWiuAqhDrAQnTXZKraVcCc6vFdL14qrZ/DcWwuRo7VoiYXalXO7S5GKpqYiVEwCbgFDfxNHKJBQ==",
       "dev": true,
       "engines": {
-        "node": ">= 6"
+        "node": "^12.20.0 || >=14"
+      }
+    },
+    "node_modules/purgecss/node_modules/glob": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-8.1.0.tgz",
+      "integrity": "sha512-r8hpEjiQEYlF2QU0df3dS+nxxSIreXQS1qRhMJM0Q5NDdR386C7jb7Hwwod8Fgiuex+k0GFjgft18yvxm5XoCQ==",
+      "dev": true,
+      "dependencies": {
+        "fs.realpath": "^1.0.0",
+        "inflight": "^1.0.4",
+        "inherits": "2",
+        "minimatch": "^5.0.1",
+        "once": "^1.3.0"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "node_modules/purgecss/node_modules/minimatch": {
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+      "dev": true,
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=10"
       }
     },
     "node_modules/q": {
@@ -8581,12 +8624,12 @@
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     "@fullhuman/postcss-purgecss": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/@fullhuman/postcss-purgecss/-/postcss-purgecss-3.1.3.tgz",
-      "integrity": "sha512-kwOXw8fZ0Lt1QmeOOrd+o4Ibvp4UTEBFQbzvWldjlKv5n+G9sXfIPn1hh63IQIL8K8vbvv1oYMJiIUbuy9bGaA==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@fullhuman/postcss-purgecss/-/postcss-purgecss-5.0.0.tgz",
+      "integrity": "sha512-onDS/b/2pMRzqSoj4qOs2tYFmOpaspjTAgvACIHMPiicu1ptajiBruTrjBzTKdxWdX0ldaBb7wj8nEaTLyFkJw==",
       "dev": true,
       "requires": {
-        "purgecss": "^3.1.3"
+        "purgecss": "^5.0.0"
       }
     },
     "@humanwhocodes/config-array": {
@@ -12888,22 +12931,53 @@
       "dev": true
     },
     "purgecss": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/purgecss/-/purgecss-3.1.3.tgz",
-      "integrity": "sha512-hRSLN9mguJ2lzlIQtW4qmPS2kh6oMnA9RxdIYK8sz18QYqd6ePp4GNDl18oWHA1f2v2NEQIh51CO8s/E3YGckQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/purgecss/-/purgecss-5.0.0.tgz",
+      "integrity": "sha512-RAnuxrGuVyLLTr8uMbKaxDRGWMgK5CCYDfRyUNNcaz5P3kGgD2b7ymQGYEyo2ST7Tl/ScwFgf5l3slKMxHSbrw==",
       "dev": true,
       "requires": {
-        "commander": "^6.0.0",
-        "glob": "^7.0.0",
-        "postcss": "^8.2.1",
-        "postcss-selector-parser": "^6.0.2"
+        "commander": "^9.0.0",
+        "glob": "^8.0.3",
+        "postcss": "^8.4.4",
+        "postcss-selector-parser": "^6.0.7"
       },
       "dependencies": {
+        "brace-expansion": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+          "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+          "dev": true,
+          "requires": {
+            "balanced-match": "^1.0.0"
+          }
+        },
         "commander": {
-          "version": "6.2.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-6.2.1.tgz",
-          "integrity": "sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==",
+          "version": "9.5.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-9.5.0.tgz",
+          "integrity": "sha512-KRs7WVDKg86PWiuAqhDrAQnTXZKraVcCc6vFdL14qrZ/DcWwuRo7VoiYXalXO7S5GKpqYiVEwCbgFDfxNHKJBQ==",
           "dev": true
+        },
+        "glob": {
+          "version": "8.1.0",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-8.1.0.tgz",
+          "integrity": "sha512-r8hpEjiQEYlF2QU0df3dS+nxxSIreXQS1qRhMJM0Q5NDdR386C7jb7Hwwod8Fgiuex+k0GFjgft18yvxm5XoCQ==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^5.0.1",
+            "once": "^1.3.0"
+          }
+        },
+        "minimatch": {
+          "version": "5.1.6",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+          "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^2.0.1"
+          }
         }
       }
     },
diff --git a/package.json b/package.json
index af1855ab..2673a512 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "author": "Steven van der Vegt",
   "license": "ISC",
   "devDependencies": {
-    "@fullhuman/postcss-purgecss": "^3.1.3",
+    "@fullhuman/postcss-purgecss": "^5.0.0",
     "@vue/compiler-sfc": "^3.3.2",
     "api-spec-converter": "^2.12.0",
     "autoprefixer": "^10.4.13",