diff --git a/requirements.txt b/requirements.txt
index 002655b..a306c9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ networkx==2.2
 nltk==3.4
 notebook==5.7.4
 numpy==1.15.4
-opencv-python==3.4.5.20
+opencv-python==3.4.7.28
 pandas==0.23.4
 pandocfilters==1.4.2
 parso==0.3.1