diff --git a/project_2-automatic_image_captioning/requirements.txt b/project_2-automatic_image_captioning/requirements.txt
index ecb553e..268916b 100644
--- a/project_2-automatic_image_captioning/requirements.txt
+++ b/project_2-automatic_image_captioning/requirements.txt
@@ -87,7 +87,7 @@ nbconvert==5.3.1
 nbformat==4.4.0
 networkx==1.11
 nltk==3.2.5
-notebook==5.4.1
+notebook==6.1.5
 numba==0.35.0
 numexpr==2.6.4
 numpy==1.12.1