diff --git a/2017/solutions/rllchatbot/requirements.txt b/2017/solutions/rllchatbot/requirements.txt
index d3da83a50..950c8a453 100644
--- a/2017/solutions/rllchatbot/requirements.txt
+++ b/2017/solutions/rllchatbot/requirements.txt
@@ -73,7 +73,7 @@ nose==1.3.1
 notebook==5.0.0
 numexpr==2.2.2
 numpy==1.13.3
-openpyxl==1.7.0
+openpyxl==2.4.2
 pandas==0.13.1
 pandocfilters==1.4.1
 path.py==10.3.1