diff --git a/requirements.txt b/requirements.txt
index abdedbd..8e94e4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -90,7 +90,7 @@ numexpr==2.5
 numpy==1.12.0
 odo==0.4.2
 olefile==0.44
-openpyxl==2.3.2
+openpyxl==2.4.2
 pandas==0.18.0
 partd==0.3.2
 path.py==0.0.0