diff --git a/vidaug/augmentors/intensity.py b/vidaug/augmentors/intensity.py
index e6df743..c3f4dd5 100644
--- a/vidaug/augmentors/intensity.py
+++ b/vidaug/augmentors/intensity.py
@@ -129,7 +129,7 @@ def __call__(self, clip):
 
         data_final = []
         for i in range(len(clip)):
-            img = clip[i].astype(np.float)
+            img = clip[i].astype(np.float64)
             img_shape = img.shape
             noise = np.random.randint(self.ratio, size=img_shape)
             img = np.where(noise == 0, 0, img)
@@ -159,7 +159,7 @@ def __call__(self, clip):
 
         data_final = []
         for i in range(len(clip)):
-            img = clip[i].astype(np.float)
+            img = clip[i].astype(np.float64)
             img_shape = img.shape
             noise = np.random.randint(self.ratio, size=img_shape)
             img = np.where(noise == 0, 255, img)