diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 3eb14f78c..17fcb09a1 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -6,7 +6,6 @@
 	<uses-permission android:name="android.permission.CAMERA" />
 	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 	<uses-permission android:name="android.permission.RECORD_AUDIO" />
-	<!-- <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> -->
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
 	<uses-permission-sdk-23 android:name="android.permission.VIBRATE"/>
 
@@ -16,8 +15,8 @@
 	<uses-permission android:name="${applicationId}.permission.C2D_MESSAGE" />
 
 	<uses-sdk
-		android:minSdkVersion="16"
-		android:targetSdkVersion="22" />
+		android:minSdkVersion="21"
+		android:targetSdkVersion="27" />
 
 	<application
 		android:name=".MainApplication"
@@ -25,13 +24,12 @@
 		android:label="@string/app_name"
 		android:icon="@mipmap/ic_launcher"
 		android:theme="@style/AppTheme"
-		android:resizeableActivity="true"
-		android:largeHeap="true">
+		android:resizeableActivity="true">
 		<activity
 			android:name=".MainActivity"
 			android:label="@string/app_name"
 			android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
-			android:launchMode="singleTop"
+			android:launchMode="singleTask"
 			android:windowSoftInputMode="adjustResize">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN" />