diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 6470535..3acfba7
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ nbformat==5.0.4
 networkx==2.4
 notebook==6.0.3
 numpy==1.17.0
-opencv-python==3.3.1.11
+opencv-python==4.2.0.32
 pandocfilters==1.4.2
 parso==0.6.2
 pexpect==4.8.0