diff --git a/adaptiveIMAS/requirements.txt b/adaptiveIMAS/requirements.txt
index fde846b..f205ed0 100644
--- a/adaptiveIMAS/requirements.txt
+++ b/adaptiveIMAS/requirements.txt
@@ -2,7 +2,7 @@ matplotlib==3.2.1
 numpy==1.14.5
 psutil==5.7.0
 opencv-python==3.4.2.17
-opencv-contrib-python==3.4.2.17
+opencv-contrib-python==4.2.0.32
 torch==1.0.1.post2
 torchvision==0.2.1
 Pillow==6.2.0