diff --git a/build.gradle b/build.gradle
index a4110277..87def50f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.12.2'
+        classpath 'com.android.tools.build:gradle:1.0.0'
         classpath 'org.ajoberstar:gradle-git:0.9.0'
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 37e9a177..97e0cf50 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Jun 14 10:45:24 CEST 2014
+#Mon Dec 15 00:02:40 CET 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SimpleSwipeUndoAdapter.java b/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SimpleSwipeUndoAdapter.java
index 836295db..956ac2b5 100644
--- a/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SimpleSwipeUndoAdapter.java
+++ b/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SimpleSwipeUndoAdapter.java
@@ -57,7 +57,7 @@ public class SimpleSwipeUndoAdapter extends SwipeUndoAdapter implements UndoCall
     /**
      * Create a new {@code SimpleSwipeUndoAdapterGen}, decorating given {@link android.widget.BaseAdapter}.
      *
-     * @param undoAdapter     the {@link android.widget.BaseAdapter} that is decorated. Must implement
+     * @param adapter     the {@link android.widget.BaseAdapter} that is decorated. Must implement
      *                        {@link com.nhaarman.listviewanimations.itemmanipulation.swipedismiss.undo.UndoAdapter}.
      * @param context         the {@link android.content.Context}.
      * @param dismissCallback the {@link com.nhaarman.listviewanimations.itemmanipulation.swipedismiss.OnDismissCallback} that is notified of dismissed items.
@@ -99,7 +99,7 @@ public View getView(final int position, @Nullable final View convertView, @NonNu
         mUndoAdapter.getUndoClickView(undoView).setOnClickListener(new UndoClickListener(view, position));
 
         boolean isInUndoState = mUndoPositions.contains(position);
-        primaryView.setVisibility(isInUndoState ? View.GONE : View.VISIBLE);
+        primaryView.setVisibility(isInUndoState ? View.INVISIBLE : View.VISIBLE);
         undoView.setVisibility(isInUndoState ? View.VISIBLE : View.GONE);
 
         return view;
diff --git a/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SwipeUndoTouchListener.java b/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SwipeUndoTouchListener.java
index 628a9e6f..3a31e597 100644
--- a/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SwipeUndoTouchListener.java
+++ b/lib-manipulation/src/main/java/com/nhaarman/listviewanimations/itemmanipulation/swipedismiss/undo/SwipeUndoTouchListener.java
@@ -132,12 +132,12 @@ public void dimissPending() {
     }
 
     /**
-     * Sets the visibility of the primary {@link android.view.View} to {@link android.view.View#GONE}, and animates the undo {@code View} in to view.
+     * Sets the visibility of the primary {@link android.view.View} to {@link android.view.View#INVISIBLE}, and animates the undo {@code View} in to view.
      *
      * @param view the parent {@code View} which contains both primary and undo {@code View}s.
      */
     private void showUndoView(@NonNull final View view) {
-        mCallback.getPrimaryView(view).setVisibility(View.GONE);
+        mCallback.getPrimaryView(view).setVisibility(View.INVISIBLE);
 
         View undoView = mCallback.getUndoView(view);
         undoView.setVisibility(View.VISIBLE);