diff --git a/CHANGELOG.md b/CHANGELOG.md
index d608cd2..2b33bbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.5.1
+* Fix: Validate nested field before creating it even in partial update (@yuekui) 
+* Fix some potential issues  in the delete phase for reverse relations update
+
 ## 0.5.0
 * Workaround: Validation problem: `parent` isn't set for nested serializer's fields on the validation stage #1 (@kenny1992)
 * Fix: Validation problem: custom validation errors raised from the nested serializer have a wrong path #2 (@kenny1992)
diff --git a/drf_writable_nested/__init__.py b/drf_writable_nested/__init__.py
index 6378eda..9a673dc 100644
--- a/drf_writable_nested/__init__.py
+++ b/drf_writable_nested/__init__.py
@@ -1,5 +1,5 @@
 __title__ = 'DRF writable nested'
-__version__ = '0.5.0'
+__version__ = '0.5.1'
 __author__ = 'beda.software'
 __license__ = 'BSD 2-Clause'
 __copyright__ = 'Copyright 2014-2018 beda.software'