diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74476c33e82..a8a780d8d2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## 0.4.21
+
 ## 0.4.20
 
 * `Serialization`
diff --git a/gradle.properties b/gradle.properties
index cec7824686e..79800e2f326 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -40,5 +40,5 @@ dokka_version=1.4.20
 # Project data
 
 group=dev.inmo
-version=0.4.20
-android_code_version=24
+version=0.4.21
+android_code_version=25