diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36d34fcf..a7791a8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -264,6 +264,7 @@
 
 ##### Bug Fixes
 
+-   [`4e6b2eb`](https://github.com/stdlib-js/stdlib/commit/4e6b2eb39e01d193302cd93ebf93dd2f42c71291) - update type for indices
 -   [`c57d1d8`](https://github.com/stdlib-js/stdlib/commit/c57d1d880a32cfaff0c57744c81ef641640cddef) - return subscripts from perspective of ndarray view, not buffer
 
 </section>
@@ -815,6 +816,7 @@ A total of 4 people contributed to this release. Thank you to the following cont
 
 <details>
 
+-   [`4e6b2eb`](https://github.com/stdlib-js/stdlib/commit/4e6b2eb39e01d193302cd93ebf93dd2f42c71291) - **fix:** update type for indices _(by Athan Reines)_
 -   [`c57d1d8`](https://github.com/stdlib-js/stdlib/commit/c57d1d880a32cfaff0c57744c81ef641640cddef) - **fix:** return subscripts from perspective of ndarray view, not buffer _(by Athan Reines)_
 -   [`2777e4b`](https://github.com/stdlib-js/stdlib/commit/2777e4be161869d09406e3b17947d24c64b47af2) - **bench:** resolve lint errors in benchmarks _(by Athan Reines)_
 -   [`6e4b9eb`](https://github.com/stdlib-js/stdlib/commit/6e4b9ebc31d9629446019e37e31bfe9b180b675c) - **feat:** update namespace TypeScript declarations [(#2681)](https://github.com/stdlib-js/stdlib/pull/2681) _(by stdlib-bot, Philipp Burckhardt)_
diff --git a/base/for-each/docs/types/index.d.ts b/base/for-each/docs/types/index.d.ts
index c2e072e3..014197b8 100644
--- a/base/for-each/docs/types/index.d.ts
+++ b/base/for-each/docs/types/index.d.ts
@@ -42,7 +42,7 @@ type Unary<T, U> = ( this: U, value: T ) => void;
 * @param value - current array element
 * @param indices - current array element indices
 */
-type Binary<T, U> = ( this: U, value: T, indices: number ) => void;
+type Binary<T, U> = ( this: U, value: T, indices: Array<number> ) => void;
 
 /**
 * Callback invoked for each ndarray element.
@@ -51,7 +51,7 @@ type Binary<T, U> = ( this: U, value: T, indices: number ) => void;
 * @param indices - current array element indices
 * @param arr - input array
 */
-type Ternary<T, U> = ( this: U, value: T, indices: number, arr: typedndarray<T> ) => void;
+type Ternary<T, U> = ( this: U, value: T, indices: Array<number>, arr: typedndarray<T> ) => void;
 
 /**
 * Callback invoked for each ndarray element.