diff --git a/requirements.txt b/requirements.txt
index 762cbcd..bfd144f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 Pillow==6.2.0
 opencv-python==3.4.2.17
-opencv-contrib-python==3.4.2.17
+opencv-contrib-python==3.4.7.28