diff --git a/dio/CHANGELOG.md b/dio/CHANGELOG.md
index 4c7b50057..2ec1fd902 100644
--- a/dio/CHANGELOG.md
+++ b/dio/CHANGELOG.md
@@ -5,6 +5,10 @@ See the [Migration Guide][] for the complete breaking changes list.**
 
 ## Unreleased
 
+*None.*
+
+## 5.5.0
+
 - Raise the min Dart SDK version to 2.18.0.
 - Add constructor for `DioExceptionType.badCertificate`.
 - Create type alias `DioMediaType` for `http_parser`'s `MediaType`.
diff --git a/dio/pubspec.yaml b/dio/pubspec.yaml
index 20d9317c1..4ac676f40 100644
--- a/dio/pubspec.yaml
+++ b/dio/pubspec.yaml
@@ -1,5 +1,5 @@
 name: dio
-version: 5.4.3+1
+version: 5.5.0
 
 description: |
   A powerful HTTP networking package,