diff --git a/package-lock.json b/package-lock.json
index 54b0d57..4dd99fe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,13 +25,13 @@
         "eslint-plugin-n": "^16.0.1",
         "eslint-plugin-promise": "^6.1.1",
         "jest-cli": "^29.6.2",
-        "marked": "^5.0.4",
+        "marked": "^6.0.0",
         "rollup": "^3.27.0",
         "semantic-release": "^21.0.7",
         "tsd": "^0.28.1"
       },
       "peerDependencies": {
-        "marked": "^4 || ^5"
+        "marked": "^4 || ^5 || ^6"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -7641,9 +7641,9 @@
       }
     },
     "node_modules/marked": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-5.1.2.tgz",
-      "integrity": "sha512-ahRPGXJpjMjwSOlBoTMZAK7ATXkli5qCPxZ21TG44rx1KEo44bii4ekgTDQPNRQ4Kh7JMb9Ub1PVk1NxRSsorg==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-6.0.0.tgz",
+      "integrity": "sha512-7E3m/xIlymrFL5gWswIT4CheIE3fDeh51NV09M4x8iOc7NDYlyERcQMLAIHcSlrvwliwbPQ4OGD+MpPSYiQcqw==",
       "dev": true,
       "bin": {
         "marked": "bin/marked.js"
@@ -12000,36 +12000,24 @@
       }
     },
     "node_modules/semantic-release/node_modules/ansi-escapes": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-5.0.0.tgz",
-      "integrity": "sha512-5GFMVX8HqE/TB+FuBJGuO5XG0WrsA6ptUqoODaT/n9mmUaZFkqnBueB4leqGBCmrUHnCnC4PCZTCd0E7QQ83bA==",
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-6.2.0.tgz",
+      "integrity": "sha512-kzRaCqXnpzWs+3z5ABPQiVke+iq0KXkHo8xiWV4RPTi5Yli0l97BEQuhXV1s7+aSU/fu1kUuxgS4MsQ0fRuygw==",
       "dev": true,
       "dependencies": {
-        "type-fest": "^1.0.2"
+        "type-fest": "^3.0.0"
       },
       "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
-    "node_modules/semantic-release/node_modules/ansi-escapes/node_modules/type-fest": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-1.4.0.tgz",
-      "integrity": "sha512-yGSza74xk0UG8k+pLh5oeoYirvIiWo5t0/o3zHHAO2tRDiZcxWP7fywNlXhqb6/r6sWvwi+RsyQMWhVLe4BVuA==",
-      "dev": true,
-      "engines": {
-        "node": ">=10"
+        "node": ">=14.16"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/semantic-release/node_modules/chalk": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.2.0.tgz",
-      "integrity": "sha512-ree3Gqw/nazQAPuJJEy+avdl7QfZMcUvmHIKgEZkGL+xOBzRvup5Hxo6LHuMceSxOabuJLJm5Yp/92R9eMmMvA==",
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.3.0.tgz",
+      "integrity": "sha512-dLitG79d+GV1Nb/VYcCDFivJeK1hiukt9QjRNVOsUtTy1rR1YJsmpGGTZ3qJos+uw7WmWF4wUwBd9jxjocFC2w==",
       "dev": true,
       "engines": {
         "node": "^12.17.0 || ^14.13 || >=16.0.0"
@@ -12192,35 +12180,35 @@
       }
     },
     "node_modules/semantic-release/node_modules/marked": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-4.3.0.tgz",
-      "integrity": "sha512-PRsaiG84bK+AMvxziE/lCFss8juXjNaWzVbN5tXAm4XjeaS9NAHhop+PjQxz2A9h8Q4M/xGmzP8vqNwy6JeK0A==",
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-5.1.2.tgz",
+      "integrity": "sha512-ahRPGXJpjMjwSOlBoTMZAK7ATXkli5qCPxZ21TG44rx1KEo44bii4ekgTDQPNRQ4Kh7JMb9Ub1PVk1NxRSsorg==",
       "dev": true,
       "bin": {
         "marked": "bin/marked.js"
       },
       "engines": {
-        "node": ">= 12"
+        "node": ">= 16"
       }
     },
     "node_modules/semantic-release/node_modules/marked-terminal": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/marked-terminal/-/marked-terminal-5.1.1.tgz",
-      "integrity": "sha512-+cKTOx9P4l7HwINYhzbrBSyzgxO2HaHKGZGuB1orZsMIgXYaJyfidT81VXRdpelW/PcHEWxywscePVgI/oUF6g==",
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/marked-terminal/-/marked-terminal-5.2.0.tgz",
+      "integrity": "sha512-Piv6yNwAQXGFjZSaiNljyNFw7jKDdGrw70FSbtxEyldLsyeuV5ZHm/1wW++kWbrOF1VPnUgYOhB2oLL0ZpnekA==",
       "dev": true,
       "dependencies": {
-        "ansi-escapes": "^5.0.0",
+        "ansi-escapes": "^6.2.0",
         "cardinal": "^2.1.1",
-        "chalk": "^5.0.0",
-        "cli-table3": "^0.6.1",
+        "chalk": "^5.2.0",
+        "cli-table3": "^0.6.3",
         "node-emoji": "^1.11.0",
-        "supports-hyperlinks": "^2.2.0"
+        "supports-hyperlinks": "^2.3.0"
       },
       "engines": {
         "node": ">=14.13.1 || >=16.0.0"
       },
       "peerDependencies": {
-        "marked": "^1.0.0 || ^2.0.0 || ^3.0.0 || ^4.0.0"
+        "marked": "^1.0.0 || ^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0"
       }
     },
     "node_modules/semantic-release/node_modules/mimic-fn": {
@@ -19184,9 +19172,9 @@
       "dev": true
     },
     "marked": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-5.1.2.tgz",
-      "integrity": "sha512-ahRPGXJpjMjwSOlBoTMZAK7ATXkli5qCPxZ21TG44rx1KEo44bii4ekgTDQPNRQ4Kh7JMb9Ub1PVk1NxRSsorg==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-6.0.0.tgz",
+      "integrity": "sha512-7E3m/xIlymrFL5gWswIT4CheIE3fDeh51NV09M4x8iOc7NDYlyERcQMLAIHcSlrvwliwbPQ4OGD+MpPSYiQcqw==",
       "dev": true
     },
     "meow": {
@@ -22222,26 +22210,18 @@
           }
         },
         "ansi-escapes": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-5.0.0.tgz",
-          "integrity": "sha512-5GFMVX8HqE/TB+FuBJGuO5XG0WrsA6ptUqoODaT/n9mmUaZFkqnBueB4leqGBCmrUHnCnC4PCZTCd0E7QQ83bA==",
+          "version": "6.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-6.2.0.tgz",
+          "integrity": "sha512-kzRaCqXnpzWs+3z5ABPQiVke+iq0KXkHo8xiWV4RPTi5Yli0l97BEQuhXV1s7+aSU/fu1kUuxgS4MsQ0fRuygw==",
           "dev": true,
           "requires": {
-            "type-fest": "^1.0.2"
-          },
-          "dependencies": {
-            "type-fest": {
-              "version": "1.4.0",
-              "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-1.4.0.tgz",
-              "integrity": "sha512-yGSza74xk0UG8k+pLh5oeoYirvIiWo5t0/o3zHHAO2tRDiZcxWP7fywNlXhqb6/r6sWvwi+RsyQMWhVLe4BVuA==",
-              "dev": true
-            }
+            "type-fest": "^3.0.0"
           }
         },
         "chalk": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.2.0.tgz",
-          "integrity": "sha512-ree3Gqw/nazQAPuJJEy+avdl7QfZMcUvmHIKgEZkGL+xOBzRvup5Hxo6LHuMceSxOabuJLJm5Yp/92R9eMmMvA==",
+          "version": "5.3.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.3.0.tgz",
+          "integrity": "sha512-dLitG79d+GV1Nb/VYcCDFivJeK1hiukt9QjRNVOsUtTy1rR1YJsmpGGTZ3qJos+uw7WmWF4wUwBd9jxjocFC2w==",
           "dev": true
         },
         "clean-stack": {
@@ -22341,23 +22321,23 @@
           "dev": true
         },
         "marked": {
-          "version": "4.3.0",
-          "resolved": "https://registry.npmjs.org/marked/-/marked-4.3.0.tgz",
-          "integrity": "sha512-PRsaiG84bK+AMvxziE/lCFss8juXjNaWzVbN5tXAm4XjeaS9NAHhop+PjQxz2A9h8Q4M/xGmzP8vqNwy6JeK0A==",
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/marked/-/marked-5.1.2.tgz",
+          "integrity": "sha512-ahRPGXJpjMjwSOlBoTMZAK7ATXkli5qCPxZ21TG44rx1KEo44bii4ekgTDQPNRQ4Kh7JMb9Ub1PVk1NxRSsorg==",
           "dev": true
         },
         "marked-terminal": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/marked-terminal/-/marked-terminal-5.1.1.tgz",
-          "integrity": "sha512-+cKTOx9P4l7HwINYhzbrBSyzgxO2HaHKGZGuB1orZsMIgXYaJyfidT81VXRdpelW/PcHEWxywscePVgI/oUF6g==",
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/marked-terminal/-/marked-terminal-5.2.0.tgz",
+          "integrity": "sha512-Piv6yNwAQXGFjZSaiNljyNFw7jKDdGrw70FSbtxEyldLsyeuV5ZHm/1wW++kWbrOF1VPnUgYOhB2oLL0ZpnekA==",
           "dev": true,
           "requires": {
-            "ansi-escapes": "^5.0.0",
+            "ansi-escapes": "^6.2.0",
             "cardinal": "^2.1.1",
-            "chalk": "^5.0.0",
-            "cli-table3": "^0.6.1",
+            "chalk": "^5.2.0",
+            "cli-table3": "^0.6.3",
             "node-emoji": "^1.11.0",
-            "supports-hyperlinks": "^2.2.0"
+            "supports-hyperlinks": "^2.3.0"
           }
         },
         "mimic-fn": {
diff --git a/package.json b/package.json
index b10c2e6..70c0b57 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   },
   "homepage": "https://github.com/markedjs/marked-mangle#readme",
   "peerDependencies": {
-    "marked": "^4 || ^5"
+    "marked": "^4 || ^5 || ^6"
   },
   "devDependencies": {
     "@babel/core": "^7.22.9",
@@ -59,7 +59,7 @@
     "eslint-plugin-n": "^16.0.1",
     "eslint-plugin-promise": "^6.1.1",
     "jest-cli": "^29.6.2",
-    "marked": "^5.0.4",
+    "marked": "^6.0.0",
     "rollup": "^3.27.0",
     "semantic-release": "^21.0.7",
     "tsd": "^0.28.1"
diff --git a/src/index.d.ts b/src/index.d.ts
index b39c67f..7c0c6f2 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -1,8 +1,9 @@
-import type { marked } from "marked"
+import type { marked } from 'marked';
+import type { MarkedExtension } from 'marked';
 
 /**
  * Mangle email address
  *
- * @returns A {@link marked.MarkedExtension | MarkedExtension} to be passed to {@link marked.use | `marked.use()`}
+ * @returns A {@link MarkedExtension | MarkedExtension} to be passed to {@link marked.use | `marked.use()`}
  */
-export function mangle(): marked.MarkedExtension;
+export function mangle(): MarkedExtension;