diff --git a/project_2-automatic_image_captioning/requirements.txt b/project_2-automatic_image_captioning/requirements.txt
index ecb553e..5aad4e3 100644
--- a/project_2-automatic_image_captioning/requirements.txt
+++ b/project_2-automatic_image_captioning/requirements.txt
@@ -83,7 +83,7 @@ moviepy==0.2.3.2
 msgpack==0.5.6
 msgpack-python==0.4.8
 mujoco-py==1.50.1.56
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==1.11
 nltk==3.2.5