diff --git a/requirement.txt b/requirement.txt
index e55e27f..8f77212 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -43,7 +43,7 @@ nbconvert==5.3.1
 nbformat==4.4.0
 notebook==5.6.0
 numpy==1.15.0
-opencv-python==3.4.2.17
+opencv-python==4.2.0.32
 pandocfilters==1.4.2
 pathlib2==2.3.2
 pbr==4.2.0