diff --git a/requirements.txt b/requirements.txt
index 57eb773..3bc8eff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 scipy==1.1.0
 numpy==1.15.4
-opencv-python==3.4.4.19
+opencv-python==3.4.7.28
 tqdm==4.28.1