diff --git a/ionic/components/action-sheet/action-sheet.ts b/ionic/components/action-sheet/action-sheet.ts
index ed41b13051..730afe146f 100644
--- a/ionic/components/action-sheet/action-sheet.ts
+++ b/ionic/components/action-sheet/action-sheet.ts
@@ -342,7 +342,7 @@ class ActionSheetMdSlideIn extends Transition {
     backdrop.fromTo('opacity', 0.01, 0.26);
     wrapper.fromTo('translateY', '100%', '0%');
 
-    this.easing('cubic-bezier(.36,.66,.04,1)').duration(450).add(backdrop).add(wrapper);
+    this.easing('cubic-bezier(.36,.66,.04,1)').duration(400).add(backdrop).add(wrapper);
   }
 }
 Transition.register('action-sheet-md-slide-in', ActionSheetMdSlideIn);
@@ -372,10 +372,10 @@ class ActionSheetWpSlideIn extends Transition {
     let backdrop = new Animation(ele.querySelector('.backdrop'));
     let wrapper = new Animation(ele.querySelector('.action-sheet-wrapper'));
 
-    backdrop.fromTo('opacity', 0.01, 0.1);
+    backdrop.fromTo('opacity', 0.01, 0.16);
     wrapper.fromTo('translateY', '100%', '0%');
 
-    this.easing('cubic-bezier(.36,.66,.04,1)').duration(450).add(backdrop).add(wrapper);
+    this.easing('cubic-bezier(.36,.66,.04,1)').duration(400).add(backdrop).add(wrapper);
   }
 }
 Transition.register('action-sheet-wp-slide-in', ActionSheetWpSlideIn);