diff --git a/requirements.txt b/requirements.txt
index a8adba9..03b118f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ luma.core==1.14.0
 luma.led-matrix==1.4.1
 mccabe==0.6.1
 numpy==1.16.2
-opencv-python==3.4.6.27
+opencv-python==3.4.7.28
 picamera==1.13
 Pillow==7.1.2
 pycrypto==2.6.1