diff --git a/requirements_fixed.txt b/requirements_fixed.txt
index 5e72e146..f487efe4 100644
--- a/requirements_fixed.txt
+++ b/requirements_fixed.txt
@@ -4,7 +4,7 @@ numpy==1.18.5
 scipy==1.4.1 
 chumpy==0.69
 scikit-image==0.15 
-opencv-python==4.1.1 
+opencv-python==4.2.0.32 
 scikit-image==0.15     #skimage
 PyYAML==5.1.1         
 torch==1.6.0   # for compatible with pytorch3d