diff --git a/src/index.ts b/src/index.ts
index bceefac..c176a8f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,8 @@
 import { FlatConfig } from '@typescript-eslint/utils/ts-eslint';
-import enforceColumnTypes from './rules/enforce-column-types';
-import enforceConsistentNullability from './rules/enforce-consistent-nullability';
-import enforceRelationTypes from './rules/enforce-relation-types';
+import enforceColumnTypes from './rules/enforce-column-types.js';
+import enforceConsistentNullability from './rules/enforce-consistent-nullability.js';
+import enforceRelationTypes from './rules/enforce-relation-types.js';
+import recommended from './recommended.js';
 
 export const rules = {
     'enforce-column-types': enforceColumnTypes,
@@ -17,4 +18,6 @@ export const plugin: FlatConfig.Plugin = {
     rules,
 };
 
+export { recommended };
+
 export default plugin;
diff --git a/src/recommended.ts b/src/recommended.ts
index 3764ab2..35388f4 100644
--- a/src/recommended.ts
+++ b/src/recommended.ts
@@ -1,5 +1,5 @@
 import { FlatConfig } from '@typescript-eslint/utils/ts-eslint';
-import plugin from './index';
+import { plugin } from './index.js';
 
 const config: FlatConfig.Config = {
     plugins: {
diff --git a/src/rules/enforce-column-types.test.ts b/src/rules/enforce-column-types.test.ts
index c21382c..022b451 100644
--- a/src/rules/enforce-column-types.test.ts
+++ b/src/rules/enforce-column-types.test.ts
@@ -2,7 +2,7 @@ import path from 'path';
 import * as vitest from 'vitest';
 import tsParser from '@typescript-eslint/parser';
 import { RuleTester } from '@typescript-eslint/rule-tester';
-import enforceColumnTypes from './enforce-column-types';
+import enforceColumnTypes from './enforce-column-types.js';
 
 RuleTester.afterAll = vitest.afterAll;
 RuleTester.it = vitest.it;
diff --git a/src/rules/enforce-column-types.ts b/src/rules/enforce-column-types.ts
index 57bea9f..4db42bc 100644
--- a/src/rules/enforce-column-types.ts
+++ b/src/rules/enforce-column-types.ts
@@ -11,8 +11,8 @@ import {
     convertTypeToColumnType,
     isTypesEqual,
     typeToString,
-} from '../utils/columnType';
-import { findEitherDecoratorArguments, findParentClass } from '../utils/treeTraversal';
+} from '../utils/columnType.js';
+import { findEitherDecoratorArguments, findParentClass } from '../utils/treeTraversal.js';
 
 const createRule = ESLintUtils.RuleCreator(
     (name) =>
diff --git a/src/rules/enforce-consistent-nullability.test.ts b/src/rules/enforce-consistent-nullability.test.ts
index 3a55b43..927f483 100644
--- a/src/rules/enforce-consistent-nullability.test.ts
+++ b/src/rules/enforce-consistent-nullability.test.ts
@@ -2,7 +2,7 @@ import path from 'path';
 import * as vitest from 'vitest';
 import tsParser from '@typescript-eslint/parser';
 import { RuleTester } from '@typescript-eslint/rule-tester';
-import enforceConsistentNullability from './enforce-consistent-nullability';
+import enforceConsistentNullability from './enforce-consistent-nullability.js';
 
 RuleTester.afterAll = vitest.afterAll;
 RuleTester.it = vitest.it;
diff --git a/src/rules/enforce-consistent-nullability.ts b/src/rules/enforce-consistent-nullability.ts
index a60413c..0d58d28 100644
--- a/src/rules/enforce-consistent-nullability.ts
+++ b/src/rules/enforce-consistent-nullability.ts
@@ -3,7 +3,7 @@ import {
     findEitherDecoratorArguments,
     findParentClass,
     parseObjectLiteral,
-} from '../utils/treeTraversal';
+} from '../utils/treeTraversal.js';
 
 type ErrorMessages =
     | 'typescript_typeorm_missing_nullability'
diff --git a/src/rules/enforce-relation-types.test.ts b/src/rules/enforce-relation-types.test.ts
index 09c6cb4..2b322d3 100644
--- a/src/rules/enforce-relation-types.test.ts
+++ b/src/rules/enforce-relation-types.test.ts
@@ -2,7 +2,7 @@ import path from 'path';
 import * as vitest from 'vitest';
 import tsParser from '@typescript-eslint/parser';
 import { RuleTester } from '@typescript-eslint/rule-tester';
-import enforceRelationTypes from './enforce-relation-types';
+import enforceRelationTypes from './enforce-relation-types.js';
 
 RuleTester.afterAll = vitest.afterAll;
 RuleTester.it = vitest.it;
diff --git a/src/rules/enforce-relation-types.ts b/src/rules/enforce-relation-types.ts
index ce8f17d..697227f 100644
--- a/src/rules/enforce-relation-types.ts
+++ b/src/rules/enforce-relation-types.ts
@@ -4,7 +4,7 @@ import {
     findEitherDecoratorArguments,
     findObjectArgument,
     findParentClass,
-} from '../utils/treeTraversal';
+} from '../utils/treeTraversal.js';
 import {
     convertArgumentToRelationType,
     convertTypeToRelationType,
@@ -12,7 +12,7 @@ import {
     typeToString,
     isTypeMissingNullable,
     isTypeMissingArray,
-} from '../utils/relationType';
+} from '../utils/relationType.js';
 
 const createRule = ESLintUtils.RuleCreator(
     (name) =>
diff --git a/src/utils/columnType.ts b/src/utils/columnType.ts
index 69197a4..5e750e0 100644
--- a/src/utils/columnType.ts
+++ b/src/utils/columnType.ts
@@ -8,7 +8,7 @@ import {
     UnionTypeNode,
     isTypeReferenceNode,
 } from 'typescript';
-import { parseObjectLiteral } from './treeTraversal';
+import { parseObjectLiteral } from './treeTraversal.js';
 
 type Column =
     | 'Column'
diff --git a/src/utils/relationType.ts b/src/utils/relationType.ts
index a400aa3..88da850 100644
--- a/src/utils/relationType.ts
+++ b/src/utils/relationType.ts
@@ -1,5 +1,5 @@
 import { AST_NODE_TYPES, TSESTree } from '@typescript-eslint/utils';
-import { findObjectArgument, findReturnedValue, parseObjectLiteral } from './treeTraversal';
+import { findObjectArgument, findReturnedValue, parseObjectLiteral } from './treeTraversal.js';
 
 interface RelationType {
     name: string;