diff --git a/requirements.txt b/requirements.txt
index aa81ccc..4d7b912 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ Markdown==2.6.11
 matplotlib==2.2.3
 mccabe==0.6.1
 numpy==1.14.5
-opencv-python==3.4.3.18
+opencv-python==3.4.7.28
 parso==0.3.1
 pexpect==4.6.0
 pickleshare==0.7.5