diff --git a/requirements.txt b/requirements.txt
index eb45e1e..310573f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ networkx==2.2
 notebook==5.7.4
 numpy==1.16.2
 opencv-python==4.0.0.21
-opencv-python-headless==4.0.0.21
+opencv-python-headless==4.1.1.26
 pandas==0.24.1
 pandocfilters==1.4.2
 parso==0.3.4