diff --git a/requirements.txt b/requirements.txt
index bded368..7fb6db5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ kiwisolver==1.0.1
 matplotlib==2.2.2
 networkx==2.1
 numpy==1.14.3
-opencv-python==3.4.1.15
+opencv-python==3.4.7.28
 pbr==4.0.3
 Pillow==8.2.0
 pyparsing==2.2.0