diff --git a/PyTorch/Segmentation/MaskRCNN/pytorch/requirements.txt b/PyTorch/Segmentation/MaskRCNN/pytorch/requirements.txt
index 5c63432..ec8a6f1 100644
--- a/PyTorch/Segmentation/MaskRCNN/pytorch/requirements.txt
+++ b/PyTorch/Segmentation/MaskRCNN/pytorch/requirements.txt
@@ -1,4 +1,4 @@
 mlperf-compliance==0.0.10
-opencv-python==3.4.1.15
+opencv-python==3.4.7.28
 yacs
 git+https://github.com/NVIDIA/cocoapi.git@nvidia/master#egg=cocoapi&subdirectory=PythonAPI