diff --git a/build.gradle b/build.gradle
index 9b3fa3e..47cf56f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:3.2.1'
     }
 }
 
diff --git a/lvl_library/build.gradle b/lvl_library/build.gradle
index 3114215..a5ad477 100644
--- a/lvl_library/build.gradle
+++ b/lvl_library/build.gradle
@@ -4,6 +4,7 @@ android {
     compileSdkVersion 23
 
     defaultConfig {
+        // Devices >= 3 have a version of Android Market that supports licensing.
         minSdkVersion 4
         targetSdkVersion 23
     }
diff --git a/lvl_library/src/main/AndroidManifest.xml b/lvl_library/src/main/AndroidManifest.xml
index fd82c29..f278ca7 100644
--- a/lvl_library/src/main/AndroidManifest.xml
+++ b/lvl_library/src/main/AndroidManifest.xml
@@ -17,8 +17,6 @@
     package="com.google.android.vending.licensing"
     android:versionCode="2"
     android:versionName="1.5">
-    <!-- Devices >= 3 have version of Android Market that supports licensing. -->
-    <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="23" />
     <!-- Required permission to check licensing. -->
     <uses-permission android:name="com.android.vending.CHECK_LICENSE" />
 </manifest>