diff --git a/library/src/main/java/me/itangqi/waveloadingview/WaveLoadingView.java b/library/src/main/java/me/itangqi/waveloadingview/WaveLoadingView.java
index eb00138..d32a6bc 100755
--- a/library/src/main/java/me/itangqi/waveloadingview/WaveLoadingView.java
+++ b/library/src/main/java/me/itangqi/waveloadingview/WaveLoadingView.java
@@ -60,6 +60,7 @@ public class WaveLoadingView extends View {
     private static final float DEFAULT_TITLE_TOP_SIZE = 18.0f;
     private static final float DEFAULT_TITLE_CENTER_SIZE = 22.0f;
     private static final float DEFAULT_TITLE_BOTTOM_SIZE = 18.0f;
+    private int progressDuration = 1000;
 
     public enum ShapeType {
         TRIANGLE,
@@ -558,7 +559,7 @@ public float getAmplitudeRatio() {
     public void setProgressValue(int progress) {
         mProgressValue = progress;
         ObjectAnimator waterLevelAnim = ObjectAnimator.ofFloat(this, "waterLevelRatio", mWaterLevelRatio, ((float) mProgressValue / 100));
-        waterLevelAnim.setDuration(1000);
+        waterLevelAnim.setDuration(progressDuration);
         waterLevelAnim.setInterpolator(new DecelerateInterpolator());
         AnimatorSet animatorSetProgress = new AnimatorSet();
         animatorSetProgress.play(waterLevelAnim);
@@ -836,4 +837,12 @@ else if (direction == 3) {
 
         return path;
     }
+
+    /**
+     * set duration of progress change animation, 1000ms by default
+     * @param progressDuration duration of progress change animation
+     */
+    public void setProgressDuration(int progressDuration) {
+        this.progressDuration = progressDuration;
+    }
 }
diff --git a/sample/src/main/java/me/itangqi/waveloadingview/MainActivity.java b/sample/src/main/java/me/itangqi/waveloadingview/MainActivity.java
index 9cb18dd..294b8b8 100644
--- a/sample/src/main/java/me/itangqi/waveloadingview/MainActivity.java
+++ b/sample/src/main/java/me/itangqi/waveloadingview/MainActivity.java
@@ -27,6 +27,7 @@ protected void onCreate(Bundle savedInstanceState) {
         mWaveLoadingView = (WaveLoadingView) findViewById(R.id.waveLoadingView);
         // Sets the length of the animation, default is 1000.
         mWaveLoadingView.setAnimDuration(3000);
+        mWaveLoadingView.setProgressDuration(3000);
 
         // Shape Type
         findViewById(R.id.tv_shape).setOnClickListener(new View.OnClickListener() {