diff --git a/.gitignore b/.gitignore
index 72fd6aa3..b45fa46d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -343,3 +343,4 @@ healthchecksdb
 /SunnyUI.Net5.Demo/bin/net5.0-windows
 /Bin/net472
 /Bin/net6.0-windows
+/Bin/net40