diff --git a/requirements.txt b/requirements.txt
index b378200..9c03004 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -144,7 +144,7 @@ numpy==1.16.5
 numpydoc==0.9.1
 oauthlib==3.1.0
 olefile==0.46
-opencv-python==3.4.4.19
+opencv-python==3.4.7.28
 openpyxl==3.0.0
 opt-einsum==3.1.0
 packaging==19.2