diff --git a/requirements.txt b/requirements.txt
index 6c32b6b..71d7eb1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 matplotlib==2.2.4
 pandas==0.20.3
 tqdm==4.11.2
-opencv_python==3.3.0.9
+opencv_python==3.3.1.11
 Flask==0.12.3
 Flask_Mail==0.9.1
 pymongo==3.4.0