diff --git a/CHANGELOG.md b/CHANGELOG.md
index 062673d..6118aab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Change Log
 All notable changes to QingStor SDK for Go will be documented in this file.
 
+## [v3.0.2] - 2019-7-15
+
+### Fixed
+
+- request/builder: Fix content length can't exceed int32 (#74)
+
 ## [v3.0.1] - 2019-7-11
 
 ### Fixed
@@ -189,6 +195,7 @@ All notable changes to QingStor SDK for Go will be documented in this file.
 
 - QingStor SDK for the Go programming language.
 
+[v3.0.2]: https://github.com/yunify/qingstor-sdk-go/compare/v3.0.1...v3.0.2
 [v3.0.1]: https://github.com/yunify/qingstor-sdk-go/compare/v3.0.0...v3.0.1
 [v3.0.0]: https://github.com/yunify/qingstor-sdk-go/compare/v2.3.0...v3.0.0
 [v2.3.0]: https://github.com/yunify/qingstor-sdk-go/compare/v2.2.15...v2.3.0
diff --git a/version.go b/version.go
index baf988b..15ed27b 100644
--- a/version.go
+++ b/version.go
@@ -20,4 +20,4 @@
 package sdk
 
 // Version number.
-const Version = "3.0.1"
+const Version = "3.0.2"