diff --git a/requirements.txt b/requirements.txt
index 903ed90..07420c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ numpy
 matplotlib
 pillow
 flask
-opencv-python==3.4.2.16
+opencv-python==3.4.7.28
 opencv-contrib-python==3.4.2.16