diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 010cf6b..8f4d68e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,8 +3,9 @@
           package="com.empatica.sample">
 
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
-
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
 
     <application
         android:allowBackup="true"
diff --git a/build.gradle b/build.gradle
index 1046230..230f4e5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }