diff --git a/.github/workflows/test-javascript.yml b/.github/workflows/test-javascript.yml
index 58cdeb6..20b2080 100644
--- a/.github/workflows/test-javascript.yml
+++ b/.github/workflows/test-javascript.yml
@@ -39,4 +39,7 @@ jobs:
         working-directory: javascript
 
       - run: npm run build
+        working-directory: javascript
+
+      - run: npm run lint
         working-directory: javascript
\ No newline at end of file
diff --git a/javascript/.eslintrc.json b/javascript/.eslintrc.json
deleted file mode 100644
index 9e26b5d..0000000
--- a/javascript/.eslintrc.json
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  "env": {
-    "browser": true,
-    "node": true
-  },
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "project": "tsconfig.json",
-    "sourceType": "module"
-  },
-  "plugins": [
-    "import",
-    "simple-import-sort",
-    "n",
-    "@typescript-eslint"
-  ],
-  "extends": [
-    "eslint:recommended",
-    "plugin:import/typescript",
-    "plugin:@typescript-eslint/eslint-recommended",
-    "plugin:@typescript-eslint/recommended",
-    "plugin:prettier/recommended"
-  ],
-  "rules": {
-    "import/no-cycle": "error",
-    "n/no-extraneous-import": "error",
-    "@typescript-eslint/ban-ts-ignore": "off",
-    "@typescript-eslint/ban-ts-comment": "off",
-    "@typescript-eslint/explicit-module-boundary-types": "off",
-    "@typescript-eslint/explicit-function-return-type": "off",
-    "@typescript-eslint/no-use-before-define": "off",
-    "@typescript-eslint/interface-name-prefix": "off",
-    "@typescript-eslint/member-delimiter-style": "off",
-    "@typescript-eslint/no-explicit-any": "error",
-    "@typescript-eslint/no-non-null-assertion": "error",
-    "simple-import-sort/imports": "error",
-    "simple-import-sort/exports": "error"
-  }
-}
diff --git a/javascript/eslint.config.mjs b/javascript/eslint.config.mjs
new file mode 100644
index 0000000..794bf86
--- /dev/null
+++ b/javascript/eslint.config.mjs
@@ -0,0 +1,72 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { fixupConfigRules, fixupPluginRules } from '@eslint/compat'
+import { FlatCompat } from '@eslint/eslintrc'
+import js from '@eslint/js'
+import typescriptEslint from '@typescript-eslint/eslint-plugin'
+import tsParser from '@typescript-eslint/parser'
+import { defineConfig } from 'eslint/config'
+import _import from 'eslint-plugin-import'
+import n from 'eslint-plugin-n'
+import simpleImportSort from 'eslint-plugin-simple-import-sort'
+import globals from 'globals'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+})
+
+export default defineConfig([
+  {
+    extends: fixupConfigRules(
+      compat.extends(
+        'eslint:recommended',
+        'plugin:import/typescript',
+        'plugin:@typescript-eslint/eslint-recommended',
+        'plugin:@typescript-eslint/recommended',
+      )
+    ),
+
+    plugins: {
+      import: fixupPluginRules(_import),
+      'simple-import-sort': simpleImportSort,
+      n,
+      '@typescript-eslint': fixupPluginRules(typescriptEslint),
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+      },
+
+      parser: tsParser,
+      ecmaVersion: 5,
+      sourceType: 'module',
+
+      parserOptions: {
+        project: 'tsconfig.json',
+      },
+    },
+
+    rules: {
+      'import/no-cycle': 'error',
+      'n/no-extraneous-import': 'error',
+      '@typescript-eslint/ban-ts-ignore': 'off',
+      '@typescript-eslint/ban-ts-comment': 'off',
+      '@typescript-eslint/explicit-module-boundary-types': 'off',
+      '@typescript-eslint/explicit-function-return-type': 'off',
+      '@typescript-eslint/no-use-before-define': 'off',
+      '@typescript-eslint/interface-name-prefix': 'off',
+      '@typescript-eslint/member-delimiter-style': 'off',
+      '@typescript-eslint/no-explicit-any': 'error',
+      '@typescript-eslint/no-non-null-assertion': 'error',
+      'simple-import-sort/imports': 'error',
+      'simple-import-sort/exports': 'error',
+    },
+  },
+])
diff --git a/javascript/package-lock.json b/javascript/package-lock.json
index 5e8e222..8b1f248 100644
--- a/javascript/package-lock.json
+++ b/javascript/package-lock.json
@@ -17,6 +17,9 @@
       "devDependencies": {
         "@cucumber/message-streams": "^4.0.1",
         "@cucumber/messages": "28.0.0",
+        "@eslint/compat": "^1.3.1",
+        "@eslint/eslintrc": "^3.3.1",
+        "@eslint/js": "^9.31.0",
         "@types/chai": "^5.0.0",
         "@types/chai-almost": "^1.0.3",
         "@types/chai-xml": "^0.3.6",
@@ -29,11 +32,10 @@
         "chai-almost": "^1.0.1",
         "chai-xml": "^0.4.1",
         "eslint": "9.31.0",
-        "eslint-config-prettier": "10.1.5",
         "eslint-plugin-import": "2.32.0",
         "eslint-plugin-n": "17.21.0",
-        "eslint-plugin-prettier": "5.5.1",
         "eslint-plugin-simple-import-sort": "12.1.1",
+        "globals": "^16.3.0",
         "globby": "^14.0.2",
         "mocha": "^11.0.0",
         "prettier": "3.6.2",
@@ -121,6 +123,24 @@
         "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
       }
     },
+    "node_modules/@eslint/compat": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/@eslint/compat/-/compat-1.3.1.tgz",
+      "integrity": "sha512-k8MHony59I5EPic6EQTCNOuPoVBnoYXkP+20xvwFjN7t0qI3ImyvyBgg+hIVPwC8JaxVjjUZld+cLfBLFDLucg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "peerDependencies": {
+        "eslint": "^8.40 || 9"
+      },
+      "peerDependenciesMeta": {
+        "eslint": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@eslint/config-array": {
       "version": "0.21.0",
       "resolved": "https://registry.npmjs.org/@eslint/config-array/-/config-array-0.21.0.tgz",
@@ -183,6 +203,19 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/@eslint/eslintrc/node_modules/globals": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
+      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/@eslint/js": {
       "version": "9.31.0",
       "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.31.0.tgz",
@@ -466,19 +499,6 @@
         "node": ">=14"
       }
     },
-    "node_modules/@pkgr/core": {
-      "version": "0.2.4",
-      "resolved": "https://registry.npmjs.org/@pkgr/core/-/core-0.2.4.tgz",
-      "integrity": "sha512-ROFF39F6ZrnzSUEmQQZUar0Jt4xVoP9WnDRdWwF4NNcXs3xBTLgBUDoOwW141y1jP+S8nahIbdxbFC7IShw9Iw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": "^12.20.0 || ^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/pkgr"
-      }
-    },
     "node_modules/@rtsao/scc": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@rtsao/scc/-/scc-1.1.0.tgz",
@@ -1948,22 +1968,6 @@
         "eslint": ">=6.0.0"
       }
     },
-    "node_modules/eslint-config-prettier": {
-      "version": "10.1.5",
-      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-10.1.5.tgz",
-      "integrity": "sha512-zc1UmCpNltmVY34vuLRV61r1K27sWuX39E+uyUnY8xS2Bex88VV9cugG+UZbRSRGtGyFboj+D8JODyme1plMpw==",
-      "dev": true,
-      "license": "MIT",
-      "bin": {
-        "eslint-config-prettier": "bin/cli.js"
-      },
-      "funding": {
-        "url": "https://opencollective.com/eslint-config-prettier"
-      },
-      "peerDependencies": {
-        "eslint": ">=7.0.0"
-      }
-    },
     "node_modules/eslint-import-resolver-node": {
       "version": "0.3.9",
       "resolved": "https://registry.npmjs.org/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.9.tgz",
@@ -2156,37 +2160,6 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "node_modules/eslint-plugin-prettier": {
-      "version": "5.5.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-5.5.1.tgz",
-      "integrity": "sha512-dobTkHT6XaEVOo8IO90Q4DOSxnm3Y151QxPJlM/vKC0bVy+d6cVWQZLlFiuZPP0wS6vZwSKeJgKkcS+KfMBlRw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "prettier-linter-helpers": "^1.0.0",
-        "synckit": "^0.11.7"
-      },
-      "engines": {
-        "node": "^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/eslint-plugin-prettier"
-      },
-      "peerDependencies": {
-        "@types/eslint": ">=8.0.0",
-        "eslint": ">=8.0.0",
-        "eslint-config-prettier": ">= 7.0.0 <10.0.0 || >=10.1.0",
-        "prettier": ">=3.0.0"
-      },
-      "peerDependenciesMeta": {
-        "@types/eslint": {
-          "optional": true
-        },
-        "eslint-config-prettier": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/eslint-plugin-simple-import-sort": {
       "version": "12.1.1",
       "resolved": "https://registry.npmjs.org/eslint-plugin-simple-import-sort/-/eslint-plugin-simple-import-sort-12.1.1.tgz",
@@ -2337,13 +2310,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/fast-diff": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.3.0.tgz",
-      "integrity": "sha512-VxPP4NqbUjj6MaAOafWeUn2cXWLcCtljklUtZf0Ind4XQ+QPtmA0b18zZy0jIQx+ExRVCR/ZQpBmik5lXshNsw==",
-      "dev": true,
-      "license": "Apache-2.0"
-    },
     "node_modules/fast-glob": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.2.tgz",
@@ -2698,9 +2664,9 @@
       }
     },
     "node_modules/globals": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
-      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
+      "version": "16.3.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-16.3.0.tgz",
+      "integrity": "sha512-bqWEnJ1Nt3neqx2q5SFfGS8r/ahumIakg3HcwtNlrVlwXIeNumWn/c7Pn/wKzGhf6SaW6H6uWXLqC30STCMchQ==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -4045,19 +4011,6 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
-    "node_modules/prettier-linter-helpers": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz",
-      "integrity": "sha512-GbK2cP9nraSSUF9N2XwUwqfzlAFlMNYYl+ShE/V+H8a9uNl/oUqB1w2EL54Jh0OlyRSd8RfWYJ3coVS4TROP2w==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "fast-diff": "^1.1.2"
-      },
-      "engines": {
-        "node": ">=6.0.0"
-      }
-    },
     "node_modules/punycode": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
@@ -4704,22 +4657,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/synckit": {
-      "version": "0.11.7",
-      "resolved": "https://registry.npmjs.org/synckit/-/synckit-0.11.7.tgz",
-      "integrity": "sha512-/5aUeiRPqmY0CRTJ+iVWfOOMHWTDh8JAIuNF1A6nZ2/RdCNWwKaUrO5Qw5ephLK6dYa7NclYBI0ahdgUECvdhA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@pkgr/core": "^0.2.4"
-      },
-      "engines": {
-        "node": "^14.18.0 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/synckit"
-      }
-    },
     "node_modules/tapable": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/tapable/-/tapable-2.2.1.tgz",
diff --git a/javascript/package.json b/javascript/package.json
index b84f476..325147e 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -16,8 +16,8 @@
   "scripts": {
     "build": "tsc --build tsconfig.build.json",
     "clean": "rm -rf dist",
-    "lint-fix": "eslint --ext ts --max-warnings 0 --fix src && prettier --write src",
-    "lint": "eslint --ext ts --max-warnings 0 && prettier --check src",
+    "fix": "eslint --ext ts --max-warnings 0 src --fix src && prettier --write src",
+    "lint": "eslint --ext ts --max-warnings 0 src && prettier --check src",
     "test": "mocha 'src/**/*.spec.*'",
     "prepublishOnly": "tsc --build tsconfig.build.json"
   },
@@ -33,6 +33,9 @@
   "devDependencies": {
     "@cucumber/message-streams": "^4.0.1",
     "@cucumber/messages": "28.0.0",
+    "@eslint/compat": "^1.3.1",
+    "@eslint/eslintrc": "^3.3.1",
+    "@eslint/js": "^9.31.0",
     "@types/chai": "^5.0.0",
     "@types/chai-almost": "^1.0.3",
     "@types/chai-xml": "^0.3.6",
@@ -45,11 +48,10 @@
     "chai-almost": "^1.0.1",
     "chai-xml": "^0.4.1",
     "eslint": "9.31.0",
-    "eslint-config-prettier": "10.1.5",
     "eslint-plugin-import": "2.32.0",
     "eslint-plugin-n": "17.21.0",
-    "eslint-plugin-prettier": "5.5.1",
     "eslint-plugin-simple-import-sort": "12.1.1",
+    "globals": "^16.3.0",
     "globby": "^14.0.2",
     "mocha": "^11.0.0",
     "prettier": "3.6.2",
diff --git a/javascript/src/index.spec.ts b/javascript/src/index.spec.ts
index 74652e1..dd7c2b9 100644
--- a/javascript/src/index.spec.ts
+++ b/javascript/src/index.spec.ts
@@ -14,7 +14,7 @@ import formatter from './index.js'
 const asyncPipeline = util.promisify(pipeline)
 use(chaiXml)
 
-describe('Acceptance Tests', async function() {
+describe('Acceptance Tests', async function () {
   this.timeout(10_000)
 
   const ndjsonFiles = globbySync(`*.ndjson`, {
@@ -46,7 +46,7 @@ describe('Acceptance Tests', async function() {
             emit(envelope)
             callback()
           },
-        }),
+        })
       )
 
       const expectedXml = fs.readFileSync(ndjsonFile.replace('.ndjson', '.xml'), {
diff --git a/javascript/src/makeReport.ts b/javascript/src/makeReport.ts
index a4e57f2..e23b203 100644
--- a/javascript/src/makeReport.ts
+++ b/javascript/src/makeReport.ts
@@ -54,7 +54,7 @@ export function makeReport(query: Query): ReportSuite {
     ),
     errors: 0,
     testCases: makeTestCases(query),
-    timestamp: formatTimestamp(query.findTestRunStarted())
+    timestamp: formatTimestamp(query.findTestRunStarted()),
   }
 }