diff --git a/requirements.txt b/requirements.txt
index 8c56917..19072f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ matplotlib==3.0.2
 more-itertools==5.0.0
 numba==0.42.0
 numpy==1.15.4
-opencv-python==4.0.0.21
+opencv-python==4.1.1.26
 pandas==0.23.4
 Pillow==5.4.0
 pluggy==0.8.1