diff --git a/introduction_to_applying_machine_learning/visual_object_detection/src/prepare_RecordIO.py b/introduction_to_applying_machine_learning/visual_object_detection/src/prepare_RecordIO.py
index 11152bfddb..d9f6cc5ca7 100644
--- a/introduction_to_applying_machine_learning/visual_object_detection/src/prepare_RecordIO.py
+++ b/introduction_to_applying_machine_learning/visual_object_detection/src/prepare_RecordIO.py
@@ -1,6 +1,6 @@
 
 import os
-os.system("python3 -m pip install opencv-python-headless mxnet opencv-python==4.6.0.66")
+os.system("python3 -m pip install opencv-python-headless mxnet opencv-python==4.5.5.64")
 
 import json
 import os