diff --git a/requirements.txt b/requirements.txt
index b462d9c..5171ff8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ numexpr==2.2.2
 numpy==1.8.2
 oauthlib==0.6.1
 oneconf==0.3.7.14.04.1
-openpyxl==1.7.0
+openpyxl==2.4.2
 ordereddict==1.1
 pandas==0.13.1
 patsy==0.2.1