diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c9657ca7..c39a943d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Switched the `consistent-type-definitions` rule from `warn` to `error` in the `eslint` configuration
 - Switched the `prefer-function-type` rule from `warn` to `error` in the `eslint` configuration
 - Switched the `consistent-type-assertions` rule from `warn` to `error` in the `eslint` configuration
+- Switched the `prefer-optional-chain` rule from `warn` to `error` in the `eslint` configuration
 
 ### Fixed