diff --git a/requirements.txt b/requirements.txt
index d3d7045..8877a61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ numpy == 1.17.2
 # Parallel-YOLO/processing/resize.py: 1
 # Parallel-YOLO/scripts/create_targets.py: 6
 # Parallel-YOLO/scripts/infer_targets.py: 6
-opencv-contrib-python == 4.2.0.34
+opencv-contrib-python == 4.8.1.78
 
 # Parallel-YOLO/processing/combineFourImage.py: 1
 # Parallel-YOLO/processing/resize.py: 1