diff --git a/ExoPlayer/ExoPlayer.csproj b/ExoPlayer/ExoPlayer.csproj
index 0985af34..a8cc02c3 100644
--- a/ExoPlayer/ExoPlayer.csproj
+++ b/ExoPlayer/ExoPlayer.csproj
@@ -11,7 +11,7 @@
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
     <AssemblyName>ExoPlayer</AssemblyName>
-    <TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/ExoPlayer/Transforms/Metadata.xml b/ExoPlayer/Transforms/Metadata.xml
index e125b36a..248eadd6 100644
--- a/ExoPlayer/Transforms/Metadata.xml
+++ b/ExoPlayer/Transforms/Metadata.xml
@@ -37,6 +37,7 @@
 
   <!-- TtmlNode has no declared visibility but needs to be public because TtmlSubtitle exposes it and is public -->
   <attr path="/api/package[@name='com.google.android.exoplayer.text.ttml']/class[@name='TtmlNode']" name="visibility">public</attr>
+  <attr path="/api/package[@name='com.google.android.exoplayer.text.ttml']/class[@name='TtmlStyle']" name="visibility">public</attr>
 
   <attr path="/api/package[@name='com.google.android.exoplayer.extractor.webm']/interface[@name='EbmlReaderOutput']" name="visibility">internal</attr>
   <attr path="/api/package[@name='com.google.android.exoplayer.extractor.mp4']/class[@name='TrackSampleTable']" name="visibility">public</attr>
diff --git a/Samples/ExoPlayer.SimpleDemo/Exoplayer.Droid.csproj b/Samples/ExoPlayer.SimpleDemo/Exoplayer.Droid.csproj
index bdd857ba..107a2c89 100644
--- a/Samples/ExoPlayer.SimpleDemo/Exoplayer.Droid.csproj
+++ b/Samples/ExoPlayer.SimpleDemo/Exoplayer.Droid.csproj
@@ -14,7 +14,7 @@
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
     <AssemblyName>Exoplayer.Droid</AssemblyName>
-    <TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/Samples/ExoPlayer.SimpleDemo/Properties/AndroidManifest.xml b/Samples/ExoPlayer.SimpleDemo/Properties/AndroidManifest.xml
index 3db9c912..613ddb39 100644
--- a/Samples/ExoPlayer.SimpleDemo/Properties/AndroidManifest.xml
+++ b/Samples/ExoPlayer.SimpleDemo/Properties/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="Exoplayer.Droid">
-	<uses-sdk android:targetSdkVersion="21" android:minSdkVersion="15" />
+	<uses-sdk android:targetSdkVersion="23" android:minSdkVersion="15" />
 	<application android:label="Exoplayer.Droid"></application>
 </manifest>
\ No newline at end of file