diff --git a/requirements.txt b/requirements.txt
index 65a6843..ae81b85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ matplotlib==2.2.2
 networkx==2.3
 numba==0.38.1
 numpy==1.14.5
-opencv-python==3.4.1.15
+opencv-python==3.4.7.28
 Pillow==6.1.0
 pyparsing==2.4.2
 python-dateutil==2.8.0