diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05a914d9..cc79dfec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# 2019-12-10 version 3.2.1
+  * Fix snprintf return value checking (#821)
+  * Remove some warnings (#819)
+  * Fix fbuffer result checking (#812)
+  * Fix temporary object handling (#807)
+  * Improve cmake support (#804)
+  * Fix invalid `int main` parameter (#800)
+  * Improve supporting platform (#797, #817)
+  * Fix ZLIB error handling (#795)
+  * Remove unused variable (#793)
+  * Improve integer overflow checking (#792)
+
 # 2019-05-27 version 3.2.0
 
   * Fix invalid include (#783)
diff --git a/README.md b/README.md
index 149e3371..0021c3c9 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 `msgpack` for C/C++
 ===================
 
-Version 3.2.0 [![Build Status](https://travis-ci.org/msgpack/msgpack-c.svg?branch=master)](https://travis-ci.org/msgpack/msgpack-c) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/master)
+Version 3.2.1 [![Build Status](https://travis-ci.org/msgpack/msgpack-c.svg?branch=master)](https://travis-ci.org/msgpack/msgpack-c) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/master)
 
 It's like JSON but smaller and faster.
 
diff --git a/appveyor.yml b/appveyor.yml
index c2c00b53..6348c777 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 3.2.0.{build}
+version: 3.2.1.{build}
 
 image:
 - Visual Studio 2015
diff --git a/include/msgpack/version_master.h b/include/msgpack/version_master.h
index afb8ebe5..2c02e603 100644
--- a/include/msgpack/version_master.h
+++ b/include/msgpack/version_master.h
@@ -1,3 +1,3 @@
 #define MSGPACK_VERSION_MAJOR    3
 #define MSGPACK_VERSION_MINOR    2
-#define MSGPACK_VERSION_REVISION 0
+#define MSGPACK_VERSION_REVISION 1