diff --git a/dio/CHANGELOG.md b/dio/CHANGELOG.md
index 2a3770f0a..899a0a9ab 100644
--- a/dio/CHANGELOG.md
+++ b/dio/CHANGELOG.md
@@ -7,6 +7,10 @@ See the [Migration Guide][] for the complete breaking changes list.**
 
 *None.*
 
+## 5.2.1
+
+*None.*
+
 ## 5.2.0+2
 
 - Revert changes to handling of `List<int>` body data.
diff --git a/dio/pubspec.yaml b/dio/pubspec.yaml
index cc7e844be..ada6a3c69 100644
--- a/dio/pubspec.yaml
+++ b/dio/pubspec.yaml
@@ -9,7 +9,7 @@ description: |
 homepage: https://github.com/cfug/dio
 repository: https://github.com/cfug/dio/blob/main/dio
 issue_tracker: https://github.com/cfug/dio/issues
-version: 5.2.0+1
+version: 5.2.1
 
 environment:
   sdk: '>=2.15.0 <3.0.0'