diff --git a/app/build.gradle b/app/build.gradle
index 28b359f3..5180f172 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,6 +45,9 @@ android {
         debug {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-debug.cfg'
+            // multidex is enabled only in debug builds as in release builds proguard should
+            // strip all unused methods
+            multiDexEnabled true
         }
     }
     lintOptions {
@@ -78,9 +81,9 @@ dependencies {
     }
     compile 'org.solovyev.android:checkout:0.7.5@aar'
     compile 'org.solovyev.android:material:0.1.4@aar'
-    compile 'com.google.android.gms:play-services-ads:9.0.2'
-    compile 'com.google.android.gms:play-services-base:9.0.2'
-    compile 'com.google.android.gms:play-services-analytics:9.0.2'
+    compile "com.google.android.gms:play-services-ads:${versions.gpsLib}"
+    compile "com.google.android.gms:play-services-base:${versions.gpsLib}"
+    compile "com.google.android.gms:play-services-analytics:${versions.gpsLib}"
     compile(name: 'plotter', ext: 'aar')
     compile 'com.google.guava:guava:19.0'
     compile('org.simpleframework:simple-xml:2.6.1') {
@@ -102,11 +105,11 @@ dependencies {
     testCompile 'org.skyscreamer:jsonassert:1.2.3'
     testCompile(name: 'org.apache.http.legacy', ext: 'jar')
 
-    androidTestCompile 'com.android.support:support-annotations:23.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.4.1'
-    androidTestCompile 'com.android.support.test:rules:0.4.1'
+    androidTestCompile "com.android.support:support-annotations:${versions.supportLib}"
+    androidTestCompile 'com.android.support.test:runner:0.5'
+    androidTestCompile 'com.android.support.test:rules:0.5'
     androidTestCompile 'org.hamcrest:hamcrest-library:1.3'
-    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'
+    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
 }
 
 apt {
diff --git a/app/src/main/java/org/solovyev/android/widget/menu/CustomPopupMenu.java b/app/src/main/java/org/solovyev/android/widget/menu/CustomPopupMenu.java
index 66710b1f..c307b4eb 100644
--- a/app/src/main/java/org/solovyev/android/widget/menu/CustomPopupMenu.java
+++ b/app/src/main/java/org/solovyev/android/widget/menu/CustomPopupMenu.java
@@ -23,9 +23,14 @@ import android.support.v7.view.SupportMenuInflater;
 import android.support.v7.view.menu.MenuBuilder;
 import android.support.v7.view.menu.MenuPresenter;
 import android.support.v7.view.menu.SubMenuBuilder;
+import android.support.v7.widget.ForwardingListener;
 import android.support.v7.widget.ListPopupWindow;
 import android.support.v7.widget.PopupMenu;
-import android.view.*;
+import android.view.Gravity;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
 
 /**
  * Static library support version of the framework's {@link android.widget.PopupMenu}.
@@ -141,7 +146,7 @@ public class CustomPopupMenu implements MenuBuilder.Callback, MenuPresenter.Call
      */
     public View.OnTouchListener getDragToOpenListener() {
         if (mDragListener == null) {
-            mDragListener = new ListPopupWindow.ForwardingListener(mAnchor) {
+            mDragListener = new ForwardingListener(mAnchor) {
                 @Override
                 protected boolean onForwardingStarted() {
                     show();
diff --git a/build.gradle b/build.gradle
index 5b53b408..918a0519 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,8 @@ buildscript {
     }
 
     ext {
-        versions = [supportLib: "23.4.0",
+        versions = [supportLib: "24.2.0",
+                    gpsLib    : "9.4.0",
                     sdk       : [compile: 23, buildTools: "23.0.3", min: 9, target: 23]]
     }
 }