diff --git a/requirements.txt b/requirements.txt
index ab354e0..de16965 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ flake8
 h5py==2.9.0
 ipykernel==5.1.0
 matplotlib==3.0.3
-notebook==6.4.1
+notebook==6.4.12
 numpy==1.17.4
 opencv-python
 requests==2.22.0