diff --git a/requirements.txt b/requirements.txt
index 9a62026ed..9d0fb7b71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 torch
 torchvision>=0.5
-opencv-python-headless<=4.5.4.60
+opencv-python-headless
 scipy
 numpy
 Pillow
diff --git a/unit_test/README.md b/unit_test/README.md
index f88bd75ff..78d8ca549 100644
--- a/unit_test/README.md
+++ b/unit_test/README.md
@@ -9,7 +9,7 @@ This module can be used as a typical python module. One python wrapper script an
 ### Python script (*recommneded*)
 The script can be called with (assuming calling from `EasyOCR/`);
 ```
-python ./unit_test/run_unit_test.py --easyocr ./easyocr --verbose 2 --test ./unit_test/EasyOcrUnitTestPackage.pickle --data_dir ./examples 
+python ./unit_test/run_unit_test.py --easyocr ./easyocr --verbose 2 --test ./unit_test/data/EasyOcrUnitTestPackage.pickle --image_data_dirs ./examples 
 ```
 
 #### Script arguments