diff --git a/packages/preferred-locale/.npmignore b/packages/preferred-locale/.npmignore
index 2fae843..761f063 100644
--- a/packages/preferred-locale/.npmignore
+++ b/packages/preferred-locale/.npmignore
@@ -2,3 +2,4 @@ src
 rollup.config.js
 *.tgz
 *.log*
+types/utils
diff --git a/packages/preferred-locale/types/availableLocales/index.d.ts b/packages/preferred-locale/types/availableLocales/index.d.ts
deleted file mode 100644
index e1cefac..0000000
--- a/packages/preferred-locale/types/availableLocales/index.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-declare function _default(userLocales: any[], translatedLocales: string[], options?: {
-    regionLowerCase: boolean;
-}): any[];
-export default _default;
diff --git a/packages/preferred-locale/types/deduplicate/index.d.ts b/packages/preferred-locale/types/deduplicate/index.d.ts
deleted file mode 100644
index 7e3d4f8..0000000
--- a/packages/preferred-locale/types/deduplicate/index.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-declare function _default(array: string[] | any[]): string[] | any[];
-export default _default;
diff --git a/packages/preferred-locale/types/isLanguageAvailable/index.d.ts b/packages/preferred-locale/types/isLanguageAvailable/index.d.ts
deleted file mode 100644
index 02467a1..0000000
--- a/packages/preferred-locale/types/isLanguageAvailable/index.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-declare function _default(userLocale: string, translatedLocales: string[], index: number, array: any[]): boolean;
-export default _default;
diff --git a/packages/preferred-locale/types/unifyUserLocales/index.d.ts b/packages/preferred-locale/types/unifyUserLocales/index.d.ts
deleted file mode 100644
index 1e479ee..0000000
--- a/packages/preferred-locale/types/unifyUserLocales/index.d.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-declare function _default(userLocales: string[], options?: {
-    regionLowerCase: boolean;
-    languageOnly: boolean;
-}): any[];
-export default _default;
diff --git a/packages/preferred-locale/types/userLocales/index.d.ts b/packages/preferred-locale/types/userLocales/index.d.ts
deleted file mode 100644
index 45e5e72..0000000
--- a/packages/preferred-locale/types/userLocales/index.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-declare function _default(fallback: string): string[];
-export default _default;