diff --git a/Modbus.Net/Modbus.Net/ModBus.Net.nuspec b/Modbus.Net/Modbus.Net/ModBus.Net.nuspec
index f22fa61..6d0b696 100644
--- a/Modbus.Net/Modbus.Net/ModBus.Net.nuspec
+++ b/Modbus.Net/Modbus.Net/ModBus.Net.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>Modbus.Net</id>
-        <version>1.2.2</version>
+        <version>1.2.2.1</version>
         <title>Modbus.Net</title>
         <authors>Chris L.(Luo Sheng)</authors>
         <owners>Hangzhou Delian IoT Science Technology Co.,Ltd.</owners>