diff --git a/CHANGELOG.md b/CHANGELOG.md
index 941b0559fb9..abc12d48068 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.5.1
+
+* `Versions`:
+    * `Kotlin Serialization`: `1.2.0` -> `1.2.1`
+
 ## 0.5.0
 
 **Notice**: This version is still depend on Kotlin
diff --git a/gradle.properties b/gradle.properties
index f8d42d1b0b1..a19f1f3bf01 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,7 +9,7 @@ org.gradle.jvmargs=-Xmx2g
 
 kotlin_version=1.5.0
 kotlin_coroutines_version=1.5.0
-kotlin_serialisation_core_version=1.2.0
+kotlin_serialisation_core_version=1.2.1
 kotlin_exposed_version=0.31.1
 
 ktor_version=1.5.4
@@ -45,5 +45,5 @@ dokka_version=1.4.32
 # Project data
 
 group=dev.inmo
-version=0.5.0
-android_code_version=41
+version=0.5.1
+android_code_version=42