diff --git a/requirements.txt b/requirements.txt
index 1f0cbc1..73049e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy>=1.16.0
 scikit-image>=0.14.5
-opencv-python==4.2.0.32
+opencv-python==4.8.1.78
 shapely>=1.6.4
 mahotas>=1.4.8