diff --git a/src/faker.ts b/src/faker.ts
index 5f5e14ce392..7b7f5e162a3 100644
--- a/src/faker.ts
+++ b/src/faker.ts
@@ -1,8 +1,8 @@
 import type { LocaleDefinition, MetadataDefinition } from './definitions';
 import { FakerError } from './errors/faker-error';
 import { deprecated } from './internal/deprecated';
-import type { LocaleProxy } from './locale-proxy';
-import { createLocaleProxy } from './locale-proxy';
+import type { LocaleProxy } from './internal/locale-proxy';
+import { createLocaleProxy } from './internal/locale-proxy';
 import { AirlineModule } from './modules/airline';
 import { AnimalModule } from './modules/animal';
 import { ColorModule } from './modules/color';
diff --git a/src/index.ts b/src/index.ts
index 0b5903408da..f94b3aa0133 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -30,10 +30,6 @@ export type {
 export { FakerError } from './errors/faker-error';
 export { Faker } from './faker';
 export type { FakerOptions } from './faker';
-export {
-  generateMersenne32Randomizer,
-  generateMersenne53Randomizer,
-} from './internal/mersenne';
 export * from './locale';
 export { fakerEN as faker } from './locale';
 export * from './locales';
@@ -85,3 +81,7 @@ export type { WordModule } from './modules/word';
 export type { Randomizer } from './randomizer';
 export { SimpleFaker, simpleFaker } from './simple-faker';
 export { mergeLocales } from './utils/merge-locales';
+export {
+  generateMersenne32Randomizer,
+  generateMersenne53Randomizer,
+} from './utils/mersenne';
diff --git a/src/locale-proxy.ts b/src/internal/locale-proxy.ts
similarity index 96%
rename from src/locale-proxy.ts
rename to src/internal/locale-proxy.ts
index e99ba655156..dbb9f2779f2 100644
--- a/src/locale-proxy.ts
+++ b/src/internal/locale-proxy.ts
@@ -1,5 +1,5 @@
-import type { LocaleDefinition } from './definitions';
-import { FakerError } from './errors/faker-error';
+import type { LocaleDefinition } from '../definitions';
+import { FakerError } from '../errors/faker-error';
 
 /**
  * A proxy for LocaleDefinition that marks all properties as required and throws an error when an entry is accessed that is not defined.
diff --git a/src/internal/mersenne.ts b/src/internal/mersenne.ts
index d01b5ee9b0e..351faa4e4b9 100644
--- a/src/internal/mersenne.ts
+++ b/src/internal/mersenne.ts
@@ -1,5 +1,3 @@
-import type { Randomizer } from '../randomizer';
-
 /**
  * Copyright (c) 2022-2023 Faker
  *
@@ -325,49 +323,3 @@ export class MersenneTwister19937 {
   }
   // These real versions are due to Isaku Wada, 2002/01/09
 }
-
-/**
- * Generates a MersenneTwister19937 randomizer with 32 bits of precision.
- * This is the default randomizer used by faker prior to v9.0.
- */
-export function generateMersenne32Randomizer(): Randomizer {
-  const twister = new MersenneTwister19937();
-
-  twister.initGenrand(Math.ceil(Math.random() * Number.MAX_SAFE_INTEGER));
-
-  return {
-    next(): number {
-      return twister.genrandReal2();
-    },
-    seed(seed: number | number[]): void {
-      if (typeof seed === 'number') {
-        twister.initGenrand(seed);
-      } else if (Array.isArray(seed)) {
-        twister.initByArray(seed, seed.length);
-      }
-    },
-  };
-}
-
-/**
- * Generates a MersenneTwister19937 randomizer with 53 bits of precision.
- * This is the default randomizer used by faker starting with v9.0.
- */
-export function generateMersenne53Randomizer(): Randomizer {
-  const twister = new MersenneTwister19937();
-
-  twister.initGenrand(Math.ceil(Math.random() * Number.MAX_SAFE_INTEGER));
-
-  return {
-    next(): number {
-      return twister.genrandRes53();
-    },
-    seed(seed: number | number[]): void {
-      if (typeof seed === 'number') {
-        twister.initGenrand(seed);
-      } else if (Array.isArray(seed)) {
-        twister.initByArray(seed, seed.length);
-      }
-    },
-  };
-}
diff --git a/src/utils/types.ts b/src/internal/types.ts
similarity index 100%
rename from src/utils/types.ts
rename to src/internal/types.ts
diff --git a/src/modules/date/index.ts b/src/modules/date/index.ts
index f2eac1cf80e..53204a03817 100644
--- a/src/modules/date/index.ts
+++ b/src/modules/date/index.ts
@@ -1,8 +1,8 @@
 import type { Faker } from '../..';
 import type { DateEntryDefinition } from '../../definitions';
 import { FakerError } from '../../errors/faker-error';
+import { assertLocaleData } from '../../internal/locale-proxy';
 import { SimpleModuleBase } from '../../internal/module-base';
-import { assertLocaleData } from '../../locale-proxy';
 
 /**
  * Converts a date passed as a `string`, `number` or `Date` to a valid `Date` object.
diff --git a/src/modules/string/index.ts b/src/modules/string/index.ts
index cfee0dc13fe..7df31fc7f7d 100644
--- a/src/modules/string/index.ts
+++ b/src/modules/string/index.ts
@@ -1,6 +1,6 @@
 import { FakerError } from '../../errors/faker-error';
 import { SimpleModuleBase } from '../../internal/module-base';
-import type { LiteralUnion } from '../../utils/types';
+import type { LiteralUnion } from '../../internal/types';
 
 export type Casing = 'upper' | 'lower' | 'mixed';
 
diff --git a/src/simple-faker.ts b/src/simple-faker.ts
index e775cbc7b5d..743df923570 100644
--- a/src/simple-faker.ts
+++ b/src/simple-faker.ts
@@ -1,10 +1,10 @@
-import { generateMersenne53Randomizer } from './internal/mersenne';
 import { DatatypeModule } from './modules/datatype';
 import { SimpleDateModule } from './modules/date';
 import { SimpleHelpersModule } from './modules/helpers';
 import { NumberModule } from './modules/number';
 import { StringModule } from './modules/string';
 import type { Randomizer } from './randomizer';
+import { generateMersenne53Randomizer } from './utils/mersenne';
 
 /**
  * This is a simplified Faker class that doesn't need any localized data to generate its output.
diff --git a/src/utils/mersenne.ts b/src/utils/mersenne.ts
new file mode 100644
index 00000000000..de415f9166e
--- /dev/null
+++ b/src/utils/mersenne.ts
@@ -0,0 +1,48 @@
+import { MersenneTwister19937 } from '../internal/mersenne';
+import type { Randomizer } from '../randomizer';
+
+/**
+ * Generates a MersenneTwister19937 randomizer with 32 bits of precision.
+ * This is the default randomizer used by faker prior to v9.0.
+ */
+export function generateMersenne32Randomizer(): Randomizer {
+  const twister = new MersenneTwister19937();
+
+  twister.initGenrand(Math.ceil(Math.random() * Number.MAX_SAFE_INTEGER));
+
+  return {
+    next(): number {
+      return twister.genrandReal2();
+    },
+    seed(seed: number | number[]): void {
+      if (typeof seed === 'number') {
+        twister.initGenrand(seed);
+      } else if (Array.isArray(seed)) {
+        twister.initByArray(seed, seed.length);
+      }
+    },
+  };
+}
+
+/**
+ * Generates a MersenneTwister19937 randomizer with 53 bits of precision.
+ * This is the default randomizer used by faker starting with v9.0.
+ */
+export function generateMersenne53Randomizer(): Randomizer {
+  const twister = new MersenneTwister19937();
+
+  twister.initGenrand(Math.ceil(Math.random() * Number.MAX_SAFE_INTEGER));
+
+  return {
+    next(): number {
+      return twister.genrandRes53();
+    },
+    seed(seed: number | number[]): void {
+      if (typeof seed === 'number') {
+        twister.initGenrand(seed);
+      } else if (Array.isArray(seed)) {
+        twister.initByArray(seed, seed.length);
+      }
+    },
+  };
+}
diff --git a/test/locale-proxy.spec.ts b/test/internal/locale-proxy.spec.ts
similarity index 98%
rename from test/locale-proxy.spec.ts
rename to test/internal/locale-proxy.spec.ts
index c9c8928c76c..1b6e060b9ca 100644
--- a/test/locale-proxy.spec.ts
+++ b/test/internal/locale-proxy.spec.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest';
-import { FakerError, en } from '../src';
-import { createLocaleProxy } from '../src/locale-proxy';
+import { FakerError, en } from '../../src';
+import { createLocaleProxy } from '../../src/internal/locale-proxy';
 
 describe('LocaleProxy', () => {
   const locale = createLocaleProxy(en);
diff --git a/test/modules/number.spec.ts b/test/modules/number.spec.ts
index f318fc5be09..f9adf9ff07d 100644
--- a/test/modules/number.spec.ts
+++ b/test/modules/number.spec.ts
@@ -1,8 +1,8 @@
 import validator from 'validator';
 import { describe, expect, it } from 'vitest';
 import { FakerError, SimpleFaker, faker } from '../../src';
-import { MERSENNE_MAX_VALUE } from '../internal/mersenne-test-utils';
 import { seededTests } from '../support/seeded-runs';
+import { MERSENNE_MAX_VALUE } from '../utils/mersenne-test-utils';
 import { times } from './../support/times';
 
 describe('number', () => {
diff --git a/test/scripts/apidocs/method.example.ts b/test/scripts/apidocs/method.example.ts
index e72f5f3ff9a..4ecdaee1ad7 100644
--- a/test/scripts/apidocs/method.example.ts
+++ b/test/scripts/apidocs/method.example.ts
@@ -1,7 +1,7 @@
 import type { Casing, ColorFormat } from '../../../src';
 import { FakerError } from '../../../src/errors/faker-error';
+import type { LiteralUnion } from '../../../src/internal/types';
 import type { AlphaNumericChar } from '../../../src/modules/string';
-import type { LiteralUnion } from '../../../src/utils/types';
 // explicitly export types so they show up in the docs as decomposed types
 export type { NumberColorFormat, StringColorFormat } from '../../../src';
 export type { AlphaNumericChar, Casing, ColorFormat, LiteralUnion };
diff --git a/test/scripts/apidocs/verify-jsdoc-tags.spec.ts b/test/scripts/apidocs/verify-jsdoc-tags.spec.ts
index ea5ed8b9b69..753ef9b3ce9 100644
--- a/test/scripts/apidocs/verify-jsdoc-tags.spec.ts
+++ b/test/scripts/apidocs/verify-jsdoc-tags.spec.ts
@@ -119,7 +119,7 @@ describe('verify JSDoc tags', () => {
                 );
 
                 if (moduleName === 'randomizer') {
-                  examples = `import { generateMersenne32Randomizer } from '${relativeImportPath}/internal/mersenne';
+                  examples = `import { generateMersenne32Randomizer } from '${relativeImportPath}/utils/mersenne';
 
 const randomizer = generateMersenne32Randomizer();
 
diff --git a/test/support/seeded-runs.ts b/test/support/seeded-runs.ts
index a05f185430d..dee0051c11b 100644
--- a/test/support/seeded-runs.ts
+++ b/test/support/seeded-runs.ts
@@ -1,6 +1,6 @@
 import { describe, expect, describe as vi_describe, it as vi_it } from 'vitest';
 import type { Faker } from '../../src/faker';
-import type { Callable, MethodOf } from '../../src/utils/types';
+import type { Callable, MethodOf } from '../../src/internal/types';
 
 export const seededRuns = [42, 1337, 1211];
 
diff --git a/test/internal/__snapshots__/mersenne.spec.ts.snap b/test/utils/__snapshots__/mersenne.spec.ts.snap
similarity index 100%
rename from test/internal/__snapshots__/mersenne.spec.ts.snap
rename to test/utils/__snapshots__/mersenne.spec.ts.snap
diff --git a/test/internal/mersenne-test-utils.ts b/test/utils/mersenne-test-utils.ts
similarity index 100%
rename from test/internal/mersenne-test-utils.ts
rename to test/utils/mersenne-test-utils.ts
diff --git a/test/internal/mersenne.spec.ts b/test/utils/mersenne.spec.ts
similarity index 97%
rename from test/internal/mersenne.spec.ts
rename to test/utils/mersenne.spec.ts
index f0e48bd0f78..5e9e4c27bc6 100644
--- a/test/internal/mersenne.spec.ts
+++ b/test/utils/mersenne.spec.ts
@@ -1,10 +1,10 @@
 import { beforeAll, beforeEach, describe, expect, it } from 'vitest';
+import { MersenneTwister19937 } from '../../src/internal/mersenne';
+import type { Randomizer } from '../../src/randomizer';
 import {
-  MersenneTwister19937,
   generateMersenne32Randomizer,
   generateMersenne53Randomizer,
-} from '../../src/internal/mersenne';
-import type { Randomizer } from '../../src/randomizer';
+} from '../../src/utils/mersenne';
 import { seededRuns } from '../support/seeded-runs';
 import { times } from '../support/times';
 import {