diff --git a/requirements.txt b/requirements.txt
index 1953ed9..cd1d8b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # platform: win-64
 
 natsort==6.0.0
-openpyxl==2.6.2
+openpyxl==3.0.3
 pandas==0.24.2
 xlrd==1.2.0
 xlwt==1.3.0