diff --git a/roundedimageview/build.gradle b/roundedimageview/build.gradle
index db2bf96..c56d88f 100644
--- a/roundedimageview/build.gradle
+++ b/roundedimageview/build.gradle
@@ -2,12 +2,12 @@ apply plugin: 'com.android.library'
 apply plugin: 'maven'
 apply plugin: 'signing'
 
-sonatypeUsername = project.hasProperty('sonatypeUsername') ? sonatypeUsername : ""
-sonatypePassword = project.hasProperty('sonatypePassword') ? sonatypePassword : ""
+def sonatypeUsername = project.hasProperty('sonatypeUsername') ? sonatypeUsername : ""
+def sonatypePassword = project.hasProperty('sonatypePassword') ? sonatypePassword : ""
 
 android {
-  compileSdkVersion 19
-  buildToolsVersion '20.0.0'
+  compileSdkVersion 21
+  buildToolsVersion '21.0.1'
 
   compileOptions {
     sourceCompatibility JavaVersion.VERSION_1_7