diff --git a/.changeset/long-birds-attend.md b/.changeset/long-birds-attend.md
new file mode 100644
index 0000000000..c3dfe46029
--- /dev/null
+++ b/.changeset/long-birds-attend.md
@@ -0,0 +1,10 @@
+---
+"@channel.io/bezier-react": major
+---
+
+**Breaking Changes: Deprecated modules for internal use**
+
+- No longer provides `useEventHandler` and `useMergeRefs` hook.
+- No longer provides `useId` hook. Use `useId` hook of `react` instead.
+- No longer provides `getRootElement` hook. Use `useWindow` hook instead.
+- No longer provides `StyleUtils` and `StringUtils` utils.
diff --git a/packages/bezier-react/src/index.ts b/packages/bezier-react/src/index.ts
index 63d40834c5..897baa882f 100644
--- a/packages/bezier-react/src/index.ts
+++ b/packages/bezier-react/src/index.ts
@@ -57,15 +57,6 @@ export * from '~/src/components/LegacyStack'
 export * from '~/src/components/LegacyTooltip'
 
 export * from '~/src/types/ComponentProps'
-export * from '~/src/types/Utils'
 export * from '~/src/types/Token'
 
-export { default as useEventHandler } from '~/src/hooks/useEventHandler'
-export { default as useMergeRefs } from '~/src/hooks/useMergeRefs'
-export { default as useId } from '~/src/hooks/useId'
-
-export { getRootElement } from '~/src/utils/dom'
-export * as StyleUtils from '~/src/utils/style'
-export * as StringUtils from '~/src/utils/string'
-
 export * from '~/src/features'
diff --git a/packages/bezier-react/src/types/Utils.ts b/packages/bezier-react/src/types/Utils.ts
deleted file mode 100644
index d1e449630a..0000000000
--- a/packages/bezier-react/src/types/Utils.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export type Entries<Type> = {
-  [Key in keyof Type]: [Key, Type[Key]]
-}[keyof Type][]