diff --git a/CHANGELOG.md b/CHANGELOG.md
index 663dc9bb..b43b28d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `CellIndex.indexByColumnRow()` now requires non-null integers of row index and column index
 
-## [4.0.0] - ???
+## [4.0.0] - 2023-11-25
 
 ### Breaking Changes
 
@@ -27,6 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Issue where seamingly random values are converted to a date iso8601 string, caused by incorrect interpretation of numFmtId=164
+- Fixed corrupt excel file when writing large datasets with improvements in shared_strings
 
 
 ## [3.0.0] - 2023-07-30
diff --git a/pubspec.yaml b/pubspec.yaml
index 7a4ba036..b560a477 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: excel
 description: A flutter and dart library for reading, creating, editing and updating excel sheets with compatible both on client and server side.
-version: 3.0.0
+version: 4.0.0
 homepage: https://github.com/justkawal/excel
 topics:
   - excel