diff --git a/CHANGELOG.md b/CHANGELOG.md
index c103c0e..f2c3be0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.2.1
+
+* Fixed Tick.Change value for MODE_FULL
+
 ## 4.2.0
 
 * New API to get Virtual contract notes
diff --git a/Documentation/docs/changelog.md b/Documentation/docs/changelog.md
index c103c0e..f2c3be0 100755
--- a/Documentation/docs/changelog.md
+++ b/Documentation/docs/changelog.md
@@ -1,3 +1,7 @@
+## 4.2.1
+
+* Fixed Tick.Change value for MODE_FULL
+
 ## 4.2.0
 
 * New API to get Virtual contract notes
diff --git a/KiteConnect/KiteConnect.csproj b/KiteConnect/KiteConnect.csproj
index 73cb28c..02c46a7 100644
--- a/KiteConnect/KiteConnect.csproj
+++ b/KiteConnect/KiteConnect.csproj
@@ -5,9 +5,9 @@
     <Authors>Ajin Asokan</Authors>
     <Company>Zerodha Technology Pvt. Ltd.</Company>
     <PackageId>Tech.Zerodha.KiteConnect</PackageId>
-    <Version>4.2.0</Version>
-    <AssemblyVersion>4.2.0</AssemblyVersion>
-    <FileVersion>4.2.0</FileVersion>
+    <Version>4.2.1</Version>
+    <AssemblyVersion>4.2.1</AssemblyVersion>
+    <FileVersion>4.2.1</FileVersion>
     <Description>The official .Net client for communicating with Kite Connect API.</Description>
     <Copyright>Copyright 2023</Copyright>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>