diff --git a/brother_ql/reader.py b/brother_ql/reader.py
index 4432eb8..e186aec 100755
--- a/brother_ql/reader.py
+++ b/brother_ql/reader.py
@@ -7,7 +7,6 @@ import sys
 
 from PIL import Image
 from PIL.ImageOps import colorize
-import numpy as np
 
 from builtins import bytes