diff --git a/content/notebooks/requirements.txt b/content/notebooks/requirements.txt
index 84327d2..a874173 100644
--- a/content/notebooks/requirements.txt
+++ b/content/notebooks/requirements.txt
@@ -17,7 +17,7 @@ matplotlib==1.4.3
 mock==1.3.0
 nose==1.3.7
 numpy==1.10.1
-openpyxl==1.8.6
+openpyxl==2.4.2
 pandas==0.17.0
 pbr==1.5.0
 pelican==3.6.3