diff --git a/requirements.txt b/requirements.txt
index 8cbbadc..1f6acf0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ nbformat==4.4.0
 notebook==5.7.8
 numpy==1.13.3
 oauthlib==2.0.6
-opencv-python==3.3.0.10
+opencv-python==3.4.7.28
 pandas==0.21.1
 pandocfilters==1.4.2
 parso==0.1.0