diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88150d9..06d2788 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+# [0.5.1] - 2021-07-06
+### Fixed
+- In-app purchase
+
 # [0.05] - 2021-06-07
 ### Changed
 - the boulder result rect doesn't have a background if there is no result now
diff --git a/blueROCK.pro b/blueROCK.pro
index 8319b36..e4ff89f 100644
--- a/blueROCK.pro
+++ b/blueROCK.pro
@@ -1,7 +1,7 @@
 QT += quick qml quickcontrols2 purchasing widgets
 CONFIG += c++11
 
-VERSION = 0.5.0
+VERSION = 0.5.1
 TARGET = blueROCK
 
 # The following define makes your compiler emit warnings if you use