diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12528355..dd634af4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.63.2 (2024-09-27)
+
+### Fix
+
+- serialiaze properly unions when types are similar. Closes #749 (#751)
+
 ## 0.63.1 (2024-09-24)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index cc107ca3..12d936d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "dataclasses-avroschema"
-version = "0.63.1"
+version = "0.63.2"
 description = "Generate Avro Schemas from Python classes. Serialize/Deserialize python instances with avro schemas"
 authors = ["Marcos Schroh <schrohm@gmail.com>"]
 license = "MIT"
@@ -102,7 +102,7 @@ unfixable = []
 "tests/model_generator/test_model_generator.py" = ["E501"]
 
 [tool.commitizen]
-version = "0.63.1"
+version = "0.63.2"
 tag_format = "$version"
 version_files = [
     "pyproject.toml:version",