diff --git a/app/build.gradle b/app/build.gradle
index 818d9a14..a51d22ee 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -41,7 +41,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.5.7'
+    implementation 'com.simplemobiletools:commons:3.7.2'
     implementation 'joda-time:joda-time:2.9.9'
 
     //debugImplementation "com.squareup.leakcanary:leakcanary-android:$leakCanaryVersion"
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/ContactsAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/ContactsAdapter.kt
index 71b2a2df..6154ac39 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/ContactsAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/ContactsAdapter.kt
@@ -13,6 +13,7 @@ import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
 import com.simplemobiletools.commons.dialogs.ConfirmationDialog
 import com.simplemobiletools.commons.extensions.getColoredDrawableWithColor
 import com.simplemobiletools.commons.extensions.isActivityDestroyed
+import com.simplemobiletools.commons.views.FastScroller
 import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.contacts.R
 import com.simplemobiletools.contacts.activities.SimpleActivity
@@ -25,8 +26,8 @@ import kotlinx.android.synthetic.main.item_contact_with_number.view.*
 import java.util.*
 
 class ContactsAdapter(activity: SimpleActivity, var contactItems: MutableList<Contact>, val listener: RefreshContactsListener?,
-                      val isFavoritesFragment: Boolean, recyclerView: MyRecyclerView, itemClick: (Any) -> Unit) :
-        MyRecyclerViewAdapter(activity, recyclerView, itemClick) {
+                      val isFavoritesFragment: Boolean, recyclerView: MyRecyclerView, fastScroller: FastScroller, itemClick: (Any) -> Unit) :
+        MyRecyclerViewAdapter(activity, recyclerView, fastScroller, itemClick) {
 
     lateinit private var contactDrawable: Drawable
     var config = activity.config
@@ -163,7 +164,7 @@ class ContactsAdapter(activity: SimpleActivity, var contactItems: MutableList<Co
     override fun onViewRecycled(holder: ViewHolder?) {
         super.onViewRecycled(holder)
         if (!activity.isActivityDestroyed()) {
-            Glide.with(activity).clear(holder?.itemView?.contact_tmb)
+            Glide.with(activity).clear(holder?.itemView?.contact_tmb!!)
         }
     }
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/SelectContactsAdapter.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/SelectContactsAdapter.kt
index 419a8d75..f3ec600a 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/SelectContactsAdapter.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/adapters/SelectContactsAdapter.kt
@@ -124,6 +124,6 @@ class SelectContactsAdapter(val activity: SimpleActivity, val contacts: List<Con
 
     override fun onViewRecycled(holder: ViewHolder?) {
         super.onViewRecycled(holder)
-        Glide.with(activity).clear(holder?.itemView?.contact_tmb)
+        Glide.with(activity).clear(holder?.itemView?.contact_tmb!!)
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt
index 2b979922..6095c725 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt
@@ -115,7 +115,7 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
 
         val currAdapter = fragment_list.adapter
         if (currAdapter == null) {
-            ContactsAdapter(activity as SimpleActivity, contacts, activity, this is FavoritesFragment, fragment_list) {
+            ContactsAdapter(activity as SimpleActivity, contacts, activity, this is FavoritesFragment, fragment_list, fragment_fastscroller) {
                 if (config.callContact) {
                     val contact = it as Contact
                     if (contact.phoneNumbers.isNotEmpty()) {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a693299b..7d73f3c2 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip