diff --git a/requirements-app.txt b/requirements-app.txt
index 69be07785..ef3f411fd 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -7,7 +7,7 @@ Flask-WTF==0.14.2
 Flask-Login==0.4.1
 
 blinker==1.4
-pyexcel==0.5.8
+pyexcel==0.5.9
 pyexcel-io==0.5.8
 pyexcel-xls==0.5.7
 pyexcel-xlsx==0.5.6