diff --git a/basic_statistic/requirements.txt b/basic_statistic/requirements.txt
index f32beac..65981d8 100644
--- a/basic_statistic/requirements.txt
+++ b/basic_statistic/requirements.txt
@@ -19,7 +19,7 @@ jupyter-core==4.6.1
 MarkupSafe==1.1.1
 mistune==0.8.4
 more-itertools==8.1.0
-nbconvert==5.6.1
+nbconvert==6.3.0
 nbformat==5.0.3
 notebook==6.0.2
 numpy==1.18.1