diff --git a/YACReader/yacreader_images.qrc b/YACReader/yacreader_images.qrc
index df996b67..a5ba0eb8 100644
--- a/YACReader/yacreader_images.qrc
+++ b/YACReader/yacreader_images.qrc
@@ -10,8 +10,6 @@
     <file>../images/flow5.png</file>
     <file>../images/notCover.png</file>
     <file>../images/close.svg</file>
-    <file>../images/up.png</file>
-    <file>../images/down.png</file>
     <file>../images/centerFlow.svg</file>
     <file>../images/gotoFlow.svg</file>
     <file>../images/defaultCover.png</file>
diff --git a/images/down.png b/images/down.png
deleted file mode 100644
index 44d91d42..00000000
Binary files a/images/down.png and /dev/null differ
diff --git a/images/up.png b/images/up.png
deleted file mode 100644
index cae28b7e..00000000
Binary files a/images/up.png and /dev/null differ