diff --git a/show_today.py b/show_today.py
index 39a086f..a1e1840 100755
--- a/show_today.py
+++ b/show_today.py
@@ -1,8 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import os
-import sys
 import MosDb
 import MosReport
 
diff --git a/show_yesterday.py b/show_yesterday.py
index d142364..dc7afcd 100755
--- a/show_yesterday.py
+++ b/show_yesterday.py
@@ -1,8 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import os
-import sys
 import MosDb
 import MosReport