diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4f75103c..852d155d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Jira.js changelog
 
+### 4.0.5
+
+- **#344:** Replaced the `mime-types` library with `mime` to ensure browser compatibility, as `mime-types` relies on the `path` module from Node.js. Thanks to [kang](https://github.com/kang8) for [reporting the issue](https://github.com/MrRefactoring/jira.js/issues/344) and proposing the fix.
+
 ### 4.0.4
 
 - **#320:** Resolved a tree-shaking issue where importing a single client would still include all clients in the output bundle when using bundlers. Now, only the required client code is included. Thanks to [Nao Yonashiro](https://github.com/orisano) for [reporting the issue](https://github.com/MrRefactoring/jira.js/issues/320) and proposing a fix.
diff --git a/package-lock.json b/package-lock.json
index a033708eb..185c7ba66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,22 +1,21 @@
 {
   "name": "jira.js",
-  "version": "4.0.4",
+  "version": "4.0.5",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "jira.js",
-      "version": "4.0.4",
+      "version": "4.0.5",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.7.9",
         "formdata-node": "^6.0.3",
-        "mime-types": "^2.1.35",
+        "mime": "^4.0.6",
         "tslib": "^2.8.1"
       },
       "devDependencies": {
-        "@types/mime-types": "^2.1.4",
-        "@types/node": "^18.19.69",
+        "@types/node": "^18.19.70",
         "@types/sinon": "^17.0.3",
         "@typescript-eslint/eslint-plugin": "^8.19.0",
         "@typescript-eslint/parser": "^8.19.0",
@@ -642,9 +641,9 @@
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@@ -656,9 +655,9 @@
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@@ -712,9 +711,9 @@
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@@ -726,9 +725,9 @@
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@@ -754,9 +753,9 @@
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@@ -768,9 +767,9 @@
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@@ -782,9 +781,9 @@
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@@ -796,9 +795,9 @@
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         "node": ">=8.6"
       }
     },
+    "node_modules/mime": {
+      "version": "4.0.6",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-4.0.6.tgz",
+      "integrity": "sha512-4rGt7rvQHBbaSOF9POGkk1ocRP16Md1x36Xma8sz8h8/vfCUI2OtEIeCqe4Ofes853x4xDoPiFLIT47J5fI/7A==",
+      "funding": [
+        "https://github.com/sponsors/broofa"
+      ],
+      "license": "MIT",
+      "bin": {
+        "mime": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
     "node_modules/mime-db": {
       "version": "1.52.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
@@ -5071,9 +5078,9 @@
       }
     },
     "node_modules/rollup": {
-      "version": "4.29.1",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.29.1.tgz",
-      "integrity": "sha512-RaJ45M/kmJUzSWDs1Nnd5DdV4eerC98idtUOVr6FfKcgxqvjwHmxc5upLF9qZU9EpsVzzhleFahrT3shLuJzIw==",
+      "version": "4.30.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.30.0.tgz",
+      "integrity": "sha512-sDnr1pcjTgUT69qBksNF1N1anwfbyYG6TBQ22b03bII8EdiUQ7J0TlozVaTMjT/eEJAO49e1ndV7t+UZfL1+vA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -5087,25 +5094,25 @@
         "npm": ">=8.0.0"
       },
       "optionalDependencies": {
-        "@rollup/rollup-android-arm-eabi": "4.29.1",
-        "@rollup/rollup-android-arm64": "4.29.1",
-        "@rollup/rollup-darwin-arm64": "4.29.1",
-        "@rollup/rollup-darwin-x64": "4.29.1",
-        "@rollup/rollup-freebsd-arm64": "4.29.1",
-        "@rollup/rollup-freebsd-x64": "4.29.1",
-        "@rollup/rollup-linux-arm-gnueabihf": "4.29.1",
-        "@rollup/rollup-linux-arm-musleabihf": "4.29.1",
-        "@rollup/rollup-linux-arm64-gnu": "4.29.1",
-        "@rollup/rollup-linux-arm64-musl": "4.29.1",
-        "@rollup/rollup-linux-loongarch64-gnu": "4.29.1",
-        "@rollup/rollup-linux-powerpc64le-gnu": "4.29.1",
-        "@rollup/rollup-linux-riscv64-gnu": "4.29.1",
-        "@rollup/rollup-linux-s390x-gnu": "4.29.1",
-        "@rollup/rollup-linux-x64-gnu": "4.29.1",
-        "@rollup/rollup-linux-x64-musl": "4.29.1",
-        "@rollup/rollup-win32-arm64-msvc": "4.29.1",
-        "@rollup/rollup-win32-ia32-msvc": "4.29.1",
-        "@rollup/rollup-win32-x64-msvc": "4.29.1",
+        "@rollup/rollup-android-arm-eabi": "4.30.0",
+        "@rollup/rollup-android-arm64": "4.30.0",
+        "@rollup/rollup-darwin-arm64": "4.30.0",
+        "@rollup/rollup-darwin-x64": "4.30.0",
+        "@rollup/rollup-freebsd-arm64": "4.30.0",
+        "@rollup/rollup-freebsd-x64": "4.30.0",
+        "@rollup/rollup-linux-arm-gnueabihf": "4.30.0",
+        "@rollup/rollup-linux-arm-musleabihf": "4.30.0",
+        "@rollup/rollup-linux-arm64-gnu": "4.30.0",
+        "@rollup/rollup-linux-arm64-musl": "4.30.0",
+        "@rollup/rollup-linux-loongarch64-gnu": "4.30.0",
+        "@rollup/rollup-linux-powerpc64le-gnu": "4.30.0",
+        "@rollup/rollup-linux-riscv64-gnu": "4.30.0",
+        "@rollup/rollup-linux-s390x-gnu": "4.30.0",
+        "@rollup/rollup-linux-x64-gnu": "4.30.0",
+        "@rollup/rollup-linux-x64-musl": "4.30.0",
+        "@rollup/rollup-win32-arm64-msvc": "4.30.0",
+        "@rollup/rollup-win32-ia32-msvc": "4.30.0",
+        "@rollup/rollup-win32-x64-msvc": "4.30.0",
         "fsevents": "~2.3.2"
       }
     },
diff --git a/package.json b/package.json
index e61086e1a..70b30e942 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jira.js",
-  "version": "4.0.4",
+  "version": "4.0.5",
   "description": "A comprehensive JavaScript/TypeScript library designed for both Node.JS and browsers, facilitating seamless interaction with the Atlassian Jira API.",
   "main": "out/index.js",
   "types": "out/index.d.ts",
@@ -53,8 +53,7 @@
     "code:formatting": "npm run replace:all && npm run prettier && npm run lint:fix"
   },
   "devDependencies": {
-    "@types/mime-types": "^2.1.4",
-    "@types/node": "^18.19.69",
+    "@types/node": "^18.19.70",
     "@types/sinon": "^17.0.3",
     "@typescript-eslint/eslint-plugin": "^8.19.0",
     "@typescript-eslint/parser": "^8.19.0",
@@ -74,7 +73,7 @@
   "dependencies": {
     "axios": "^1.7.9",
     "formdata-node": "^6.0.3",
-    "mime-types": "^2.1.35",
+    "mime": "^4.0.6",
     "tslib": "^2.8.1"
   }
 }
diff --git a/src/serviceDesk/serviceDesk.ts b/src/serviceDesk/serviceDesk.ts
index 259ba2938..f7ec53e7a 100644
--- a/src/serviceDesk/serviceDesk.ts
+++ b/src/serviceDesk/serviceDesk.ts
@@ -1,5 +1,4 @@
 import { FormData, File } from 'formdata-node';
-import * as mime from 'mime-types';
 import * as Models from './models';
 import * as Parameters from './parameters';
 import { Callback } from '../callback';
@@ -117,8 +116,10 @@ export class ServiceDesk {
     const formData = new FormData();
     const attachments = Array.isArray(parameters.attachment) ? parameters.attachment : [parameters.attachment];
 
+    const { default: mime } = await import('mime');
+
     attachments.forEach(attachment => {
-      const mimeType = attachment.mimeType ?? (mime.lookup(attachment.filename) || undefined);
+      const mimeType = attachment.mimeType ?? (mime.getType(attachment.filename) || undefined);
       const file = Buffer.isBuffer(attachment.file)
         ? new File([attachment.file], attachment.filename, { type: mimeType })
         : attachment.file;
diff --git a/src/version2/issueAttachments.ts b/src/version2/issueAttachments.ts
index fa0ce36b8..c2dbd4052 100644
--- a/src/version2/issueAttachments.ts
+++ b/src/version2/issueAttachments.ts
@@ -1,5 +1,4 @@
 import { FormData, File } from 'formdata-node';
-import * as mime from 'mime-types';
 import * as Models from './models';
 import * as Parameters from './parameters';
 import { Callback } from '../callback';
@@ -426,8 +425,10 @@ export class IssueAttachments {
     const formData = new FormData();
     const attachments = Array.isArray(parameters.attachment) ? parameters.attachment : [parameters.attachment];
 
+    const { default: mime } = await import('mime');
+
     attachments.forEach(attachment => {
-      const mimeType = attachment.mimeType ?? (mime.lookup(attachment.filename) || undefined);
+      const mimeType = attachment.mimeType ?? (mime.getType(attachment.filename) || undefined);
       const file = Buffer.isBuffer(attachment.file)
         ? new File([attachment.file], attachment.filename, { type: mimeType })
         : attachment.file;
diff --git a/src/version3/issueAttachments.ts b/src/version3/issueAttachments.ts
index 24ed0b36a..4c83e6fb1 100644
--- a/src/version3/issueAttachments.ts
+++ b/src/version3/issueAttachments.ts
@@ -1,5 +1,4 @@
 import { FormData, File } from 'formdata-node';
-import * as mime from 'mime-types';
 import * as Models from './models';
 import * as Parameters from './parameters';
 import { Callback } from '../callback';
@@ -426,8 +425,10 @@ export class IssueAttachments {
     const formData = new FormData();
     const attachments = Array.isArray(parameters.attachment) ? parameters.attachment : [parameters.attachment];
 
+    const { default: mime } = await import('mime');
+
     attachments.forEach(attachment => {
-      const mimeType = attachment.mimeType ?? (mime.lookup(attachment.filename) || undefined);
+      const mimeType = attachment.mimeType ?? (mime.getType(attachment.filename) || undefined);
       const file = Buffer.isBuffer(attachment.file)
         ? new File([attachment.file], attachment.filename, { type: mimeType })
         : attachment.file;
diff --git a/tsconfig.json b/tsconfig.json
index 83c96b070..105050e12 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,7 +2,8 @@
   "compilerOptions": {
     "target": "ES6",
     "outDir": "out",
-    "module": "CommonJS",
+    "module": "NodeNext",
+    "skipLibCheck": true,
     "lib": [
       "ES2018",
       "DOM"