diff --git a/requirements.txt b/requirements.txt
index ce96d61..cc9c5cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ nbformat==4.4.0
 networkx==2.2
 notebook==5.7.8
 numpy==1.14.6
-opencv-contrib-python==3.4.5.20
+opencv-contrib-python==3.4.7.28
 opencv-python==3.4.5.20
 pandas==0.24.2
 pandocfilters==1.4.2