diff --git a/requirements.txt b/requirements.txt
index c51b74d0b..dc6392d70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ blinker==1.4
 lxml==3.8.0
 pyexcel==0.5.3
 pyexcel-io==0.4.4
-pyexcel-xls==0.4.0
+pyexcel-xls==0.4.1
 pyexcel-xlsx==0.4.1
 pyexcel-ods3==0.4.1
 pytz==2017.2