diff --git a/app/build.gradle b/app/build.gradle
index 2a55a51f..9d28db7a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,7 +45,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.14.1'
+    implementation 'com.simplemobiletools:commons:3.14.4'
     implementation 'joda-time:joda-time:2.9.9'
     implementation 'com.facebook.stetho:stetho:1.5.0'
     implementation 'com.google.code.gson:gson:2.8.2'
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/dialogs/AddFavoritesDialog.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/dialogs/AddFavoritesDialog.kt
index 4e0c1a68..9463beee 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/dialogs/AddFavoritesDialog.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/dialogs/AddFavoritesDialog.kt
@@ -12,7 +12,6 @@ import com.simplemobiletools.contacts.models.Contact
 import kotlinx.android.synthetic.main.layout_select_contact.view.*
 
 class AddFavoritesDialog(val activity: SimpleActivity, private val callback: () -> Unit) {
-    private var dialog: AlertDialog? = null
     private var view = activity.layoutInflater.inflate(R.layout.layout_select_contact, null)
     private val config = activity.config
     private var allContacts = ArrayList<Contact>()
@@ -42,7 +41,7 @@ class AddFavoritesDialog(val activity: SimpleActivity, private val callback: ()
             }
         }
 
-        dialog = AlertDialog.Builder(activity)
+        AlertDialog.Builder(activity)
                 .setPositiveButton(R.string.ok, { dialog, which -> dialogConfirmed() })
                 .setNegativeButton(R.string.cancel, null)
                 .create().apply {
diff --git a/build.gradle b/build.gradle
index a3b736f3..73d77ca8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.21'
+    ext.kotlin_version = '1.2.30'
 
     repositories {
         google()