diff --git a/requirements.txt b/requirements.txt
index f134a71..63899f9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ nbconvert==5.2.1
 nbformat==4.4.0
 numpy==1.13.0
 olefile==0.44
-opencv-python==3.3.0.9
+opencv-python==4.2.0.32
 pandocfilters==1.4.2
 pexpect==4.2.1
 pickleshare==0.7.4