diff --git a/reinforcement-learning-projects/taxi/requirements.txt b/reinforcement-learning-projects/taxi/requirements.txt
index c435325..6877c0f 100644
--- a/reinforcement-learning-projects/taxi/requirements.txt
+++ b/reinforcement-learning-projects/taxi/requirements.txt
@@ -20,7 +20,7 @@ jupyter-console==6.0.0
 jupyter-core==4.5.0
 MarkupSafe==1.1.1
 mistune==0.8.4
-nbconvert==5.6.0
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==6.4.1
 numpy==1.17.0