diff --git a/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/BluetoothConnection.java b/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/BluetoothConnection.java
index 13f65a9..4a6eef6 100644
--- a/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/BluetoothConnection.java
+++ b/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/BluetoothConnection.java
@@ -33,7 +33,7 @@
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 
-public class BluetoothConnection {
+public final class BluetoothConnection {
 
   private static final String TAG = BluetoothConnection.class.getName();
 
diff --git a/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/RxBluetooth.java b/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/RxBluetooth.java
index dca866a..8576f6c 100644
--- a/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/RxBluetooth.java
+++ b/rxbluetooth/src/main/java/com/github/ivbaranov/rxbluetooth/RxBluetooth.java
@@ -56,7 +56,7 @@
 /**
  * Enables clients to listen to bluetooth events using RxJava Observables.
  */
-public class RxBluetooth {
+public final class RxBluetooth {
   private BluetoothAdapter bluetoothAdapter;
   private Context context;