diff --git a/py/requirements.txt b/py/requirements.txt
index ec41dae..4beb1ea 100644
--- a/py/requirements.txt
+++ b/py/requirements.txt
@@ -8,7 +8,7 @@ opencv-contrib-python == 4.2.0.32
 opencv-contrib-python-headless == 4.2.0.32
 
 # py/selectivesearchsegmentation_demo.py: 15
-opencv-python == 4.2.0.32
+opencv-python == 4.8.1.78
 
 # py/selectivesearchsegmentation_demo.py: 15
 opencv-python-aarch64 == 3.3.0.1