diff --git a/legacy/openCV/requirements.txt b/legacy/openCV/requirements.txt
index e709f4f..5d42d91 100644
--- a/legacy/openCV/requirements.txt
+++ b/legacy/openCV/requirements.txt
@@ -32,7 +32,7 @@ nbconvert==5.4.0
 nbformat==4.4.0
 notebook==5.7.8
 numpy==1.15.2
-opencv-python==3.4.3.18
+opencv-python==4.1.2.30
 pandocfilters==1.4.2
 parso==0.3.1
 pexpect==4.6.0