diff --git a/Sources/CropImage/CropImageView.swift b/Sources/CropImage/CropImageView.swift
index 8187ca7..53190ad 100644
--- a/Sources/CropImage/CropImageView.swift
+++ b/Sources/CropImage/CropImageView.swift
@@ -151,6 +151,7 @@ public struct CropImageView<Controls: View>: View {
             RectHoleShape(size: targetSize)
                 .fill(style: FillStyle(eoFill: true))
                 .foregroundColor(.black.opacity(0.6))
+                .animation(.default, value: targetSize)
                 .allowsHitTesting(false)
             controls {
                 do {
diff --git a/Sources/CropImage/RectHoleShape.swift b/Sources/CropImage/RectHoleShape.swift
index d77db99..ca317f5 100644
--- a/Sources/CropImage/RectHoleShape.swift
+++ b/Sources/CropImage/RectHoleShape.swift
@@ -8,7 +8,13 @@
 import SwiftUI
 
 struct RectHoleShape: Shape {
-    let size: CGSize
+    var size: CGSize
+
+    var animatableData: AnimatablePair<CGFloat, CGFloat> {
+        get { .init(size.width, size.height) }
+        set { size = .init(width: newValue.first, height: newValue.second) }
+    }
+
     func path(in rect: CGRect) -> Path {
         let path = CGMutablePath()
         path.move(to: rect.origin)