diff --git a/package-lock.json b/package-lock.json
index d04c41a..e1b0325 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1570,6 +1570,12 @@
       "integrity": "sha512-37i+OaWTh9qeK4LSHPsyRC7NahnGotNuZvjLSgcPzblpHB3rrCJxAOgI5gCdKm7coonsaX1Of0ILiTcnZjbfxA==",
       "dev": true
     },
+    "node_modules/@types/safe-regex": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/@types/safe-regex/-/safe-regex-1.1.6.tgz",
+      "integrity": "sha512-CQ/uPB9fLOPKwDsrTeVbNIkwfUthTWOx0l6uIGwVFjZxv7e68pCW5gtTYFzdJi3EBJp8h8zYhJbTasAbX7gEMQ==",
+      "dev": true
+    },
     "node_modules/@types/semver": {
       "version": "7.5.8",
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.5.8.tgz",
@@ -6070,6 +6076,14 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/regexp-tree": {
+      "version": "0.1.27",
+      "resolved": "https://registry.npmjs.org/regexp-tree/-/regexp-tree-0.1.27.tgz",
+      "integrity": "sha512-iETxpjK6YoRWJG5o6hXLwvjYAoW+FEZn9os0PD/b6AP6xQwsa/Y7lCVgIixBbUPMfhu+i2LtdeAqVTgGlQarfA==",
+      "bin": {
+        "regexp-tree": "bin/regexp-tree"
+      }
+    },
     "node_modules/request": {
       "version": "2.88.2",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
@@ -6274,6 +6288,14 @@
         }
       ]
     },
+    "node_modules/safe-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/safe-regex/-/safe-regex-2.1.1.tgz",
+      "integrity": "sha512-rx+x8AMzKb5Q5lQ95Zoi6ZbJqwCLkqi3XuJXp5P3rT8OEc6sZCJG5AE5dU3lsgRr/F4Bs31jSlVN+j5KrsGu9A==",
+      "dependencies": {
+        "regexp-tree": "~0.1.1"
+      }
+    },
     "node_modules/safer-buffer": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
@@ -7452,12 +7474,14 @@
       "license": "MIT",
       "dependencies": {
         "comment-parser": "1.4.1",
+        "safe-regex": "2.1.1",
         "super-regex": "1.0.0"
       },
       "devDependencies": {
         "@eslint/js": "9.0.0",
         "@types/jest": "29.5.12",
         "@types/node": "20.12.7",
+        "@types/safe-regex": "1.1.6",
         "@typescript-eslint/eslint-plugin": "7.6.0",
         "@typescript-eslint/parser": "7.6.0",
         "eslint": "9.0.0",
diff --git a/packages/doxdox-parser-custom/package.json b/packages/doxdox-parser-custom/package.json
index 1046d58..487c173 100644
--- a/packages/doxdox-parser-custom/package.json
+++ b/packages/doxdox-parser-custom/package.json
@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "comment-parser": "1.4.1",
+    "safe-regex": "2.1.1",
     "super-regex": "1.0.0"
   },
   "peerDependencies": {
@@ -24,6 +25,7 @@
     "@eslint/js": "9.0.0",
     "@types/jest": "29.5.12",
     "@types/node": "20.12.7",
+    "@types/safe-regex": "1.1.6",
     "@typescript-eslint/eslint-plugin": "7.6.0",
     "@typescript-eslint/parser": "7.6.0",
     "eslint": "9.0.0",
diff --git a/packages/doxdox-parser-custom/src/index.test.ts b/packages/doxdox-parser-custom/src/index.test.ts
index eceb586..7a1b9d2 100644
--- a/packages/doxdox-parser-custom/src/index.test.ts
+++ b/packages/doxdox-parser-custom/src/index.test.ts
@@ -1,4 +1,6 @@
-import parse from './index';
+import safe from 'safe-regex';
+
+import parse, { JSDOC_PATTERN, IDENTIFIER_PATTERNS } from './index';
 
 describe('custom parser', () => {
     describe('parse', () => {
@@ -35,6 +37,17 @@ describe('custom parser', () => {
         });
     });
 
+    describe('check regular expressions', () => {
+        it('jsdoc pattern is safe', () => {
+            expect(safe(JSDOC_PATTERN)).toBeTruthy();
+        });
+        it('identifier patterns are safe', () => {
+            for (let i = 0; i < IDENTIFIER_PATTERNS.length; i += 1) {
+                expect(safe(IDENTIFIER_PATTERNS[i])).toBeTruthy();
+            }
+        });
+    });
+
     describe('parse example from JSDoc documentation https://jsdoc.app/', () => {
         // JSDoc Example from https://jsdoc.app/
         it('parse amd-module', async () => {
diff --git a/packages/doxdox-parser-custom/src/index.ts b/packages/doxdox-parser-custom/src/index.ts
index 449978a..15864cd 100644
--- a/packages/doxdox-parser-custom/src/index.ts
+++ b/packages/doxdox-parser-custom/src/index.ts
@@ -10,9 +10,10 @@ import { firstMatch, matches } from 'super-regex';
 
 const REGEX_TIMEOUT = 1000;
 
-const JSDOC_PATTERN = /(^|[ \t]+)\/\*\*\s*\n?(?:[^*]*(?:\*[^/])?)*\*\//gms;
+export const JSDOC_PATTERN =
+    /(^|[ \t]+)\/\*\*\s*\n?(?:[^*]*(?:\*[^/])?)*\*\//gms;
 
-const IDENTIFIER_PATTERNS = [
+export const IDENTIFIER_PATTERNS = [
     /(?:class|function|var|let|const)[ ]+([a-z0-9_]+)[ ]*(?:[={(])?/i,
     /((?:[a-z0-9_.]+)(\.prototype)?\.(?:[a-z0-9_]+))/i,
     /[a-z0-9_]+[ ]*as[ ]*([a-z0-9_]+)/i,