diff --git a/src/text2graph/requirements.txt b/src/text2graph/requirements.txt
index fd19de4bc..ae873593f 100644
--- a/src/text2graph/requirements.txt
+++ b/src/text2graph/requirements.txt
@@ -54,7 +54,7 @@ mkl-random==1.0.1
 msgpack==0.6.1
 msgpack-numpy==0.4.3.2
 murmurhash==1.0.2
-nbconvert==5.4.1
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.4
 notebook==5.7.8