diff --git a/66ccff-stack/web/requirements.txt b/66ccff-stack/web/requirements.txt
index a1b319be..bcd739bb 100644
--- a/66ccff-stack/web/requirements.txt
+++ b/66ccff-stack/web/requirements.txt
@@ -11,7 +11,7 @@ ipython==5.1
 pandas==0.19.1
 jinja2>=2.10.1
 jsonschema==2.5.1
-openpyxl==2.4.0
+openpyxl==2.4.2
 psycopg2==2.7.3.2
 pyPdf==1.13
 python_dateutil==2.6