diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 901b697..dc688ee
--- a/requirements.txt
+++ b/requirements.txt
@@ -70,7 +70,7 @@ nose==1.3.7
 notebook==5.7.4
 numexpr==2.6.8
 numpy==1.16.2
-opencv-python==3.4.4.19
+opencv-python==3.4.7.28
 openpyxl==2.0.2
 packaging==19.0
 pandas==0.24.2