diff --git a/CHANGELOG.md b/CHANGELOG.md
index d6d27fd..e08369d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.0] - 2025-05-15
+### Added
+- Delete book endpoint (`DELETE /api/books/{id}`) to remove a book from the database
+- Corresponding test cases for the new delete functionality
+
 ## [1.0.0] - 2025-05-14
 ### Added
 - Initial release of the Book API
@@ -19,4 +24,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - N/A (initial release)
 
 ### Removed
-- N/A (initial release)
+- N/A (initial release)
\ No newline at end of file