diff --git a/Thai-P300-Speller/requirements.txt b/Thai-P300-Speller/requirements.txt
index 3c4b3d8a..1f18971e 100644
--- a/Thai-P300-Speller/requirements.txt
+++ b/Thai-P300-Speller/requirements.txt
@@ -73,7 +73,7 @@ msgpack==1.0.0
 msgpack-numpy==0.4.4.3
 nbconvert==5.6.1
 nbformat==5.0.4
-notebook==6.0.3
+notebook==6.4.10
 numba==0.48.0
 numexpr==2.7.1
 numpy==1.18.2