diff --git a/package-lock.json b/package-lock.json
index 8d72f79..6110a83 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
         "next": "^16.2.4",
         "react": "^19.2.5",
         "react-dom": "^19.2.5",
-        "shiki": "^3.12.2"
+        "shiki": "^4.0.2"
       },
       "devDependencies": {
         "@eslint/js": "^9.39.1",
@@ -1222,42 +1222,133 @@
       }
     },
     "node_modules/@shikijs/engine-javascript": {
-      "version": "3.23.0",
-      "resolved": "https://registry.npmjs.org/@shikijs/engine-javascript/-/engine-javascript-3.23.0.tgz",
-      "integrity": "sha512-aHt9eiGFobmWR5uqJUViySI1bHMqrAgamWE1TYSUoftkAeCCAiGawPMwM+VCadylQtF4V3VNOZ5LmfItH5f3yA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/engine-javascript/-/engine-javascript-4.0.2.tgz",
+      "integrity": "sha512-7PW0Nm49DcoUIQEXlJhNNBHyoGMjalRETTCcjMqEaMoJRLljy1Bi/EGV3/qLBgLKQejdspiiYuHGQW6dX94Nag==",
       "license": "MIT",
       "dependencies": {
-        "@shikijs/types": "3.23.0",
+        "@shikijs/types": "4.0.2",
         "@shikijs/vscode-textmate": "^10.0.2",
         "oniguruma-to-es": "^4.3.4"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/engine-javascript/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/@shikijs/engine-oniguruma": {
-      "version": "3.23.0",
-      "resolved": "https://registry.npmjs.org/@shikijs/engine-oniguruma/-/engine-oniguruma-3.23.0.tgz",
-      "integrity": "sha512-1nWINwKXxKKLqPibT5f4pAFLej9oZzQTsby8942OTlsJzOBZ0MWKiwzMsd+jhzu8YPCHAswGnnN1YtQfirL35g==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/engine-oniguruma/-/engine-oniguruma-4.0.2.tgz",
+      "integrity": "sha512-UpCB9Y2sUKlS9z8juFSKz7ZtysmeXCgnRF0dlhXBkmQnek7lAToPte8DkxmEYGNTMii72zU/lyXiCB6StuZeJg==",
       "license": "MIT",
       "dependencies": {
-        "@shikijs/types": "3.23.0",
+        "@shikijs/types": "4.0.2",
         "@shikijs/vscode-textmate": "^10.0.2"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/engine-oniguruma/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/@shikijs/langs": {
-      "version": "3.23.0",
-      "resolved": "https://registry.npmjs.org/@shikijs/langs/-/langs-3.23.0.tgz",
-      "integrity": "sha512-2Ep4W3Re5aB1/62RSYQInK9mM3HsLeB91cHqznAJMuylqjzNVAVCMnNWRHFtcNHXsoNRayP9z1qj4Sq3nMqYXg==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/langs/-/langs-4.0.2.tgz",
+      "integrity": "sha512-KaXby5dvoeuZzN0rYQiPMjFoUrz4hgwIE+D6Du9owcHcl6/g16/yT5BQxSW5cGt2MZBz6Hl0YuRqf12omRfUUg==",
       "license": "MIT",
       "dependencies": {
-        "@shikijs/types": "3.23.0"
+        "@shikijs/types": "4.0.2"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/langs/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/primitive": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/primitive/-/primitive-4.0.2.tgz",
+      "integrity": "sha512-M6UMPrSa3fN5ayeJwFVl9qWofl273wtK1VG8ySDZ1mQBfhCpdd8nEx7nPZ/tk7k+TYcpqBZzj/AnwxT9lO+HJw==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/types": "4.0.2",
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/primitive/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/@shikijs/themes": {
-      "version": "3.23.0",
-      "resolved": "https://registry.npmjs.org/@shikijs/themes/-/themes-3.23.0.tgz",
-      "integrity": "sha512-5qySYa1ZgAT18HR/ypENL9cUSGOeI2x+4IvYJu4JgVJdizn6kG4ia5Q1jDEOi7gTbN4RbuYtmHh0W3eccOrjMA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/themes/-/themes-4.0.2.tgz",
+      "integrity": "sha512-mjCafwt8lJJaVSsQvNVrJumbnnj1RI8jbUKrPKgE6E3OvQKxnuRoBaYC51H4IGHePsGN/QtALglWBU7DoKDFnA==",
       "license": "MIT",
       "dependencies": {
-        "@shikijs/types": "3.23.0"
+        "@shikijs/types": "4.0.2"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/@shikijs/themes/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/@shikijs/transformers": {
@@ -4921,19 +5012,51 @@
       }
     },
     "node_modules/shiki": {
-      "version": "3.23.0",
-      "resolved": "https://registry.npmjs.org/shiki/-/shiki-3.23.0.tgz",
-      "integrity": "sha512-55Dj73uq9ZXL5zyeRPzHQsK7Nbyt6Y10k5s7OjuFZGMhpp4r/rsLBH0o/0fstIzX1Lep9VxefWljK/SKCzygIA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/shiki/-/shiki-4.0.2.tgz",
+      "integrity": "sha512-eAVKTMedR5ckPo4xne/PjYQYrU3qx78gtJZ+sHlXEg5IHhhoQhMfZVzetTYuaJS0L2Ef3AcCRzCHV8T0WI6nIQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/core": "4.0.2",
+        "@shikijs/engine-javascript": "4.0.2",
+        "@shikijs/engine-oniguruma": "4.0.2",
+        "@shikijs/langs": "4.0.2",
+        "@shikijs/themes": "4.0.2",
+        "@shikijs/types": "4.0.2",
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/shiki/node_modules/@shikijs/core": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/core/-/core-4.0.2.tgz",
+      "integrity": "sha512-hxT0YF4ExEqB8G/qFdtJvpmHXBYJ2lWW7qTHDarVkIudPFE6iCIrqdgWxGn5s+ppkGXI0aEGlibI0PAyzP3zlw==",
+      "license": "MIT",
+      "dependencies": {
+        "@shikijs/primitive": "4.0.2",
+        "@shikijs/types": "4.0.2",
+        "@shikijs/vscode-textmate": "^10.0.2",
+        "@types/hast": "^3.0.4",
+        "hast-util-to-html": "^9.0.5"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/shiki/node_modules/@shikijs/types": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@shikijs/types/-/types-4.0.2.tgz",
+      "integrity": "sha512-qzbeRooUTPnLE+sHD/Z8DStmaDgnbbc/pMrU203950aRqjX/6AFHeDYT+j00y2lPdz0ywJKx7o/7qnqTivtlXg==",
       "license": "MIT",
       "dependencies": {
-        "@shikijs/core": "3.23.0",
-        "@shikijs/engine-javascript": "3.23.0",
-        "@shikijs/engine-oniguruma": "3.23.0",
-        "@shikijs/langs": "3.23.0",
-        "@shikijs/themes": "3.23.0",
-        "@shikijs/types": "3.23.0",
         "@shikijs/vscode-textmate": "^10.0.2",
         "@types/hast": "^3.0.4"
+      },
+      "engines": {
+        "node": ">=20"
       }
     },
     "node_modules/side-channel": {
diff --git a/package.json b/package.json
index 0427c2a..0de5e37 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "next": "^16.2.4",
     "react": "^19.2.5",
     "react-dom": "^19.2.5",
-    "shiki": "^3.12.2"
+    "shiki": "^4.0.2"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",