diff --git a/requirements.txt b/requirements.txt
index 6a97c70..afc3b0c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Keras==2.2.4
 matplotlib==3.1.0
 nibabel==2.4.1
 numpy==1.16.4
-opencv-python==4.1.0.25
+opencv-python==4.1.1.26
 scikit-image==0.15.0
 scikit-learn==0.21.2
 scipy==1.2.1