diff --git a/CHANGELOG.md b/CHANGELOG.md
index eba5ef1..c8d40d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 Change Log
 ==========
+
+Version 1.2.1 *(2015-09-18)*
+----------------------------
+
+Merged NinePatchMaskTransformation to MaskTransformation.
+
 Version 1.2.0 *(2015-09-16)*
 ----------------------------
 
diff --git a/README.md b/README.md
index af8a9c4..0f3390d 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ android {
 `BlurTransformation`
 
 ### Mask
-`MaskTransformation`, `NinePatchMaskTransformation`
+`MaskTransformation`
 
 ### GPU Filter (use [GPUImage](https://github.com/CyberAgent/android-gpuimage))
 **Will require add dependencies for GPUImage.**  
@@ -113,6 +113,16 @@ Daichi Furiya (Wasabeef) - <dadadada.chop@gmail.com>
 src="https://raw.githubusercontent.com/wasabeef/art/master/twitter.png" width="75"/>
 </a>
 
+Contributions
+-------
+
+Any contributions are welcome!
+
+Contributers
+-------
+
+* [start141](https://github.com/start141)
+
 Thanks
 -------
 
diff --git a/art/demo.gif b/art/demo.gif
index d5e9959..d5e127f 100644
Binary files a/art/demo.gif and b/art/demo.gif differ
diff --git a/gradle.properties b/gradle.properties
index 8df4ba7..6cda1c3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
-VERSION_NAME=1.2.0
-VERSION_CODE=10
+VERSION_NAME=1.2.1
+VERSION_CODE=11
 GROUP=jp.wasabeef
 ARTIFACT_ID=glide-transformations