diff --git a/requirements.txt b/requirements.txt
index 43d8ead..8c2fc16 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ nbformat==4.4.0
 notebook==5.7.8
 numba==0.40.1
 numpy==1.17.2
-opencv-python==3.2.0.7
+opencv-python==3.4.7.28
 openpyxl==2.5.8
 opt-einsum==3.1.0
 pandas==0.23.4