diff --git a/build.gradle b/build.gradle
index 23d87af..06d8b84 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,11 +14,6 @@ android {
     compileSdkVersion 21
     buildToolsVersion "21.1.2"
 
-    defaultConfig {
-        minSdkVersion 1
-        targetSdkVersion 21
-    }
-
     sourceSets {
         main {
             manifest.srcFile 'AndroidManifest.xml'
diff --git a/project.properties b/project.properties
index 484dab0..93c8c3c 100644
--- a/project.properties
+++ b/project.properties
@@ -11,5 +11,5 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-17
+target=android-21
 android.library=true