diff --git a/package-lock.json b/package-lock.json
index 7ec78f946..581d8292b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -754,6 +754,23 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/@fontsource/ibm-plex-mono": {
+      "version": "5.0.14",
+      "resolved": "https://registry.npmjs.org/@fontsource/ibm-plex-mono/-/ibm-plex-mono-5.0.14.tgz",
+      "integrity": "sha512-727fOjiog6PbVkfLTRaiba5vus9z00RrGuoxif85FIKljXkoLxrSEKmACz0ldzLJy6KuEwnj5JBq2h4SUC0N8w==",
+      "dev": true
+    },
+    "node_modules/@fontsource/noto-sans": {
+      "version": "5.0.22",
+      "resolved": "https://registry.npmjs.org/@fontsource/noto-sans/-/noto-sans-5.0.22.tgz",
+      "integrity": "sha512-PwjvKPGFbgpwfKjWZj1zeUvd7ExUW2AqHE9PF9ysAJ2gOuzIHWE6mEVIlchYif7WC2pQhn+g0w6xooCObVi+4A==",
+      "dev": true
+    },
+    "node_modules/@fontsource/noto-sans-mono": {
+      "version": "5.0.20",
+      "resolved": "https://registry.npmjs.org/@fontsource/noto-sans-mono/-/noto-sans-mono-5.0.20.tgz",
+      "integrity": "sha512-4+t+dAnKvihf/uxLw7ZTQc6sTzLvz7PR+p6S9+nHWT8ym05QQiYoUj9L8xwaAACf23SyfCifbhc7EN/RdFwxHw=="
+    },
     "node_modules/@humanwhocodes/config-array": {
       "version": "0.5.0",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.5.0.tgz",
@@ -18588,18 +18605,6 @@
         "is-typedarray": "^1.0.0"
       }
     },
-    "node_modules/typeface-roboto-mono": {
-      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/typeface-roboto-mono/-/typeface-roboto-mono-1.1.13.tgz",
-      "integrity": "sha512-pnzDc70b7ywJHin/BUFL7HZX8DyOTBLT2qxlJ92eH1UJOFcENIBXa9IZrxsJX/gEKjbEDKhW5vz/TKRBNk/ufQ==",
-      "dev": true
-    },
-    "node_modules/typeface-titillium-web": {
-      "version": "1.1.13",
-      "resolved": "https://registry.npmjs.org/typeface-titillium-web/-/typeface-titillium-web-1.1.13.tgz",
-      "integrity": "sha512-R21mXf9hoqle+dgR7k6C6QUN2XElopQNsTDYI5DoU1buuYayVvzn2jd2ihKJTwM/hJsltLrlJUkyumc3FFgevA==",
-      "dev": true
-    },
     "node_modules/typescript": {
       "version": "3.9.10",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
@@ -19821,9 +19826,14 @@
     "ui": {
       "name": "@antora/ui-default",
       "license": "MPL-2.0",
+      "dependencies": {
+        "@fontsource/noto-sans-mono": "^5.0.20"
+      },
       "devDependencies": {
         "@asciidoctor/core": "~2.2",
         "@asciidoctor/tabs": "^1.0.0-beta.6",
+        "@fontsource/ibm-plex-mono": "^5.0.14",
+        "@fontsource/noto-sans": "^5.0.22",
         "autoprefixer": "^10.4",
         "browser-pack-flat": "^3.4",
         "browserify": "^17.0",
@@ -19860,8 +19870,6 @@
         "require-from-string": "^2.0",
         "stylelint": "^13.13",
         "stylelint-config-standard": "^22",
-        "typeface-roboto-mono": "1.1.13",
-        "typeface-titillium-web": "1.1.13",
         "vinyl-buffer": "^1.0",
         "vinyl-fs": "^3.0"
       },
diff --git a/ui b/ui
index 57c528f49..c9a8e3153 160000
--- a/ui
+++ b/ui
@@ -1 +1 @@
-Subproject commit 57c528f494cc45c8953006be3ca082b5e699c951
+Subproject commit c9a8e3153a9aa05d7338692a41c205890c64420c