diff --git a/requirements.txt b/requirements.txt
index 0df04cd..84e88e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ kiwisolver==1.0.1
 matplotlib==2.2.3
 networkx==2.2
 numpy==1.15.4
-opencv-python==3.4.2.17
+opencv-python==3.4.7.28
 pandas==0.23.4
 pathlib2==2.3.3
 pexpect==4.6.0