diff --git a/DigitRecognizer/requirements.txt b/DigitRecognizer/requirements.txt
index dc1e921..3ac5964 100644
--- a/DigitRecognizer/requirements.txt
+++ b/DigitRecognizer/requirements.txt
@@ -18,7 +18,7 @@ MarkupSafe==1.0
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.4.0
+notebook==6.4.10
 numpy==1.14.0
 pandas==0.22.0
 pandocfilters==1.4.2