diff --git a/TensorFlow/Self-Practices/tensorflow-hub/TFHubSample-master/requirements.txt b/TensorFlow/Self-Practices/tensorflow-hub/TFHubSample-master/requirements.txt
index 829eba2e..4fbd89b6 100644
--- a/TensorFlow/Self-Practices/tensorflow-hub/TFHubSample-master/requirements.txt
+++ b/TensorFlow/Self-Practices/tensorflow-hub/TFHubSample-master/requirements.txt
@@ -12,7 +12,7 @@ kiwisolver==1.0.1
 Markdown==3.0.1
 matplotlib==3.0.2
 numpy==1.15.4
-opencv-python==3.4.4.19
+opencv-python==3.4.7.28
 paho-mqtt==1.3.1
 pandas==0.23.4
 protobuf==3.6.1