diff --git a/anagrams/requirements.txt b/anagrams/requirements.txt
index 7613846..ba13c1f 100644
--- a/anagrams/requirements.txt
+++ b/anagrams/requirements.txt
@@ -15,7 +15,7 @@ jupyter-console==5.0.0
 jupyter-core==4.2.1
 MarkupSafe==0.23
 mistune==0.7.3
-nbconvert==5.0.0
+nbconvert==6.3.0
 nbformat==4.2.0
 notebook>=5.7.2
 pandocfilters==1.4.1