diff --git a/package.json b/package.json
index 93d26e7..b924c55 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "lint-staged": "^16.2.7",
     "postcss": "^8.5.6",
     "remark-gfm": "^4.0.1",
-    "shiki": "^3.22.0",
+    "shiki": "^4.0.0",
     "tailwindcss": "^4.1.18",
     "typescript": "^5.9.3",
     "ultracite": "^7.1.5"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a99ae42..eab86af 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -70,8 +70,8 @@ importers:
         specifier: ^4.0.1
         version: 4.0.1
       shiki:
-        specifier: ^3.22.0
-        version: 3.22.0
+        specifier: ^4.0.0
+        version: 4.1.0
       tailwindcss:
         specifier: ^4.1.18
         version: 4.1.18
@@ -558,23 +558,33 @@ packages:
       '@types/react':
         optional: true
 
-  '@shikijs/core@3.22.0':
-    resolution: {integrity: sha512-iAlTtSDDbJiRpvgL5ugKEATDtHdUVkqgHDm/gbD2ZS9c88mx7G1zSYjjOxp5Qa0eaW0MAQosFRmJSk354PRoQA==}
+  '@shikijs/core@4.1.0':
+    resolution: {integrity: sha512-jLJtSJeuFffqX6/inRE1zqU5aFv2hrszvYgq3OjbAgFRZiWv7abKMDdQzYxuSDfmUPQozZvI/kuy6VMTvnvqTQ==}
+    engines: {node: '>=20'}
 
-  '@shikijs/engine-javascript@3.22.0':
-    resolution: {integrity: sha512-jdKhfgW9CRtj3Tor0L7+yPwdG3CgP7W+ZEqSsojrMzCjD1e0IxIbwUMDDpYlVBlC08TACg4puwFGkZfLS+56Tw==}
+  '@shikijs/engine-javascript@4.1.0':
+    resolution: {integrity: sha512-YquhawCUgaBfhsS72e2Y/dI59gCBNPHu3fEO/tvLaXrTssxZrY5ddjtNLTwndrMgPo8b3IscE+xoICDzpTmlFQ==}
+    engines: {node: '>=20'}
 
-  '@shikijs/engine-oniguruma@3.22.0':
-    resolution: {integrity: sha512-DyXsOG0vGtNtl7ygvabHd7Mt5EY8gCNqR9Y7Lpbbd/PbJvgWrqaKzH1JW6H6qFkuUa8aCxoiYVv8/YfFljiQxA==}
+  '@shikijs/engine-oniguruma@4.1.0':
+    resolution: {integrity: sha512-axLpjVs45YBvvINa+dJF+NPW+KtFkNXsFr4SDw2BMj9GdeMnGxVB9PQb2xXlJYovslt/nz6giedAyOANkfc7hg==}
+    engines: {node: '>=20'}
 
-  '@shikijs/langs@3.22.0':
-    resolution: {integrity: sha512-x/42TfhWmp6H00T6uwVrdTJGKgNdFbrEdhaDwSR5fd5zhQ1Q46bHq9EO61SCEWJR0HY7z2HNDMaBZp8JRmKiIA==}
+  '@shikijs/langs@4.1.0':
+    resolution: {integrity: sha512-nwOMruEkbgdZfQ/b8CgpNBVOpvG1k0N5tbmgiFeqsan401+x3ILqlzZJowSla4Agmq4hG2Uf2wh5jLTEhR8VSg==}
+    engines: {node: '>=20'}
 
-  '@shikijs/themes@3.22.0':
-    resolution: {integrity: sha512-o+tlOKqsr6FE4+mYJG08tfCFDS+3CG20HbldXeVoyP+cYSUxDhrFf3GPjE60U55iOkkjbpY2uC3It/eeja35/g==}
+  '@shikijs/primitive@4.1.0':
+    resolution: {integrity: sha512-zx2/2Uwj2q9X3KSyYREEhXO23xBw5WUhP4orK2lE4r+t9JGITmEe0JH+wPmJhqHpOT2bRRs6lAL945+LDvOAGw==}
+    engines: {node: '>=20'}
 
-  '@shikijs/types@3.22.0':
-    resolution: {integrity: sha512-491iAekgKDBFE67z70Ok5a8KBMsQ2IJwOWw3us/7ffQkIBCyOQfm/aNwVMBUriP02QshIfgHCBSIYAl3u2eWjg==}
+  '@shikijs/themes@4.1.0':
+    resolution: {integrity: sha512-emCcTnUM7yO2wltYbaxm+yLvcCI4+h8XBKc4KmJ7EZUXoSGjcCHifkI//R4OFit9ewpg7H2/9tjOuXrT2v/Knw==}
+    engines: {node: '>=20'}
+
+  '@shikijs/types@4.1.0':
+    resolution: {integrity: sha512-3EQWX54fMpniOrDblzAhiwiJwpiTMW6+B9DWyUd9ska483tbayFYuw47UxwuPknI31bKnySfVQ/QW+jFL4rFdA==}
+    engines: {node: '>=20'}
 
   '@shikijs/vscode-textmate@10.0.2':
     resolution: {integrity: sha512-83yeghZ2xxin3Nj8z1NMd/NCuca+gsYXswywDy5bHvwlWL8tpTQmzGeUuHd9FC3E/SBEMvzJRwWEOz5gGes9Qg==}
@@ -714,6 +724,7 @@ packages:
 
   '@ungap/structured-clone@1.3.0':
     resolution: {integrity: sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g==}
+    deprecated: Potential CWE-502 - Update to 1.3.1 or higher
 
   acorn-jsx@5.3.2:
     resolution: {integrity: sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==}
@@ -1268,11 +1279,11 @@ packages:
     resolution: {integrity: sha512-VXJjc87FScF88uafS3JllDgvAm+c/Slfz06lorj2uAY34rlUu0Nt+v8wreiImcrgAjjIHp1rXpTDlLOGw29WwQ==}
     engines: {node: '>=18'}
 
-  oniguruma-parser@0.12.1:
-    resolution: {integrity: sha512-8Unqkvk1RYc6yq2WBYRj4hdnsAxVze8i7iPfQr8e4uSP3tRv0rpZcbGUDvxfQQcdwHt/e9PrMvGCsa8OqG9X3w==}
+  oniguruma-parser@0.12.2:
+    resolution: {integrity: sha512-6HVa5oIrgMC6aA6WF6XyyqbhRPJrKR02L20+2+zpDtO5QAzGHAUGw5TKQvwi5vctNnRHkJYmjAhRVQF2EKdTQw==}
 
-  oniguruma-to-es@4.3.4:
-    resolution: {integrity: sha512-3VhUGN3w2eYxnTzHn+ikMI+fp/96KoRSVK9/kMTcFqj1NRDh2IhQCKvYxDnWePKRXY/AqH+Fuiyb7VHSzBjHfA==}
+  oniguruma-to-es@4.3.6:
+    resolution: {integrity: sha512-csuQ9x3Yr0cEIs/Zgx/OEt9iBw9vqIunAPQkx19R/fiMq2oGVTgcMqO/V3Ybqefr1TBvosI6jU539ksaBULJyA==}
 
   parse-entities@4.0.2:
     resolution: {integrity: sha512-GG2AQYWoLgL877gQIKeRPGO1xF9+eG1ujIb5soS5gPvLQ1y2o8FL90w2QWNdf9I361Mpp7726c+lj3U0qK1uGw==}
@@ -1376,8 +1387,9 @@ packages:
     resolution: {integrity: sha512-Ou9I5Ft9WNcCbXrU9cMgPBcCK8LiwLqcbywW3t4oDV37n1pzpuNLsYiAV8eODnjbtQlSDwZ2cUEeQz4E54Hltg==}
     engines: {node: ^18.17.0 || ^20.3.0 || >=21.0.0}
 
-  shiki@3.22.0:
-    resolution: {integrity: sha512-LBnhsoYEe0Eou4e1VgJACes+O6S6QC0w71fCSp5Oya79inkwkm15gQ1UF6VtQ8j/taMDh79hAB49WUk8ALQW3g==}
+  shiki@4.1.0:
+    resolution: {integrity: sha512-l/ABZPUR5v70jI10EzqfMS/I96vjSGv2y0ihUV+WYFzv0EfvW4s54m0Lg8wCrrL+2IkwBzFTuxkZjPf8b2NX9Q==}
+    engines: {node: '>=20'}
 
   signal-exit@4.1.0:
     resolution: {integrity: sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==}
@@ -1897,33 +1909,40 @@ snapshots:
     optionalDependencies:
       '@types/react': 19.2.14
 
-  '@shikijs/core@3.22.0':
+  '@shikijs/core@4.1.0':
     dependencies:
-      '@shikijs/types': 3.22.0
+      '@shikijs/primitive': 4.1.0
+      '@shikijs/types': 4.1.0
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4
       hast-util-to-html: 9.0.5
 
-  '@shikijs/engine-javascript@3.22.0':
+  '@shikijs/engine-javascript@4.1.0':
     dependencies:
-      '@shikijs/types': 3.22.0
+      '@shikijs/types': 4.1.0
       '@shikijs/vscode-textmate': 10.0.2
-      oniguruma-to-es: 4.3.4
+      oniguruma-to-es: 4.3.6
 
-  '@shikijs/engine-oniguruma@3.22.0':
+  '@shikijs/engine-oniguruma@4.1.0':
     dependencies:
-      '@shikijs/types': 3.22.0
+      '@shikijs/types': 4.1.0
       '@shikijs/vscode-textmate': 10.0.2
 
-  '@shikijs/langs@3.22.0':
+  '@shikijs/langs@4.1.0':
+    dependencies:
+      '@shikijs/types': 4.1.0
+
+  '@shikijs/primitive@4.1.0':
     dependencies:
-      '@shikijs/types': 3.22.0
+      '@shikijs/types': 4.1.0
+      '@shikijs/vscode-textmate': 10.0.2
+      '@types/hast': 3.0.4
 
-  '@shikijs/themes@3.22.0':
+  '@shikijs/themes@4.1.0':
     dependencies:
-      '@shikijs/types': 3.22.0
+      '@shikijs/types': 4.1.0
 
-  '@shikijs/types@3.22.0':
+  '@shikijs/types@4.1.0':
     dependencies:
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4
@@ -2860,11 +2879,11 @@ snapshots:
     dependencies:
       mimic-function: 5.0.1
 
-  oniguruma-parser@0.12.1: {}
+  oniguruma-parser@0.12.2: {}
 
-  oniguruma-to-es@4.3.4:
+  oniguruma-to-es@4.3.6:
     dependencies:
-      oniguruma-parser: 0.12.1
+      oniguruma-parser: 0.12.2
       regex: 6.1.0
       regex-recursion: 6.0.2
 
@@ -3044,14 +3063,14 @@ snapshots:
       '@img/sharp-win32-x64': 0.34.5
     optional: true
 
-  shiki@3.22.0:
+  shiki@4.1.0:
     dependencies:
-      '@shikijs/core': 3.22.0
-      '@shikijs/engine-javascript': 3.22.0
-      '@shikijs/engine-oniguruma': 3.22.0
-      '@shikijs/langs': 3.22.0
-      '@shikijs/themes': 3.22.0
-      '@shikijs/types': 3.22.0
+      '@shikijs/core': 4.1.0
+      '@shikijs/engine-javascript': 4.1.0
+      '@shikijs/engine-oniguruma': 4.1.0
+      '@shikijs/langs': 4.1.0
+      '@shikijs/themes': 4.1.0
+      '@shikijs/types': 4.1.0
       '@shikijs/vscode-textmate': 10.0.2
       '@types/hast': 3.0.4