diff --git a/requirements.txt b/requirements.txt
index 0e17b34..c2f24f9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 hopcroftkarp==1.2.4
 intervaltree==3.0.2
 numpy==1.17.0
-opencv-python==4.1.0.25
+opencv-python==4.1.1.26
 tqdm==4.35.0