diff --git a/requirements.txt b/requirements.txt
index 3860def..02e921c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ joblib==0.11
kiwisolver==1.1.0
matplotlib==3.1.0
numpy==1.16.4
-opencv-python==3.4.3.18
+opencv-python==3.4.7.28
Pillow==6.2.0
pyparsing==2.4.0
pypng==0.0.19