diff --git a/Common/Common.csproj b/Common/Common.csproj
index 7b5d323..366108e 100644
--- a/Common/Common.csproj
+++ b/Common/Common.csproj
@@ -9,7 +9,6 @@
   <ItemGroup>
     <PackageReference Include="ncalc" Version="1.3.8" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.5-beta1" />
-    <PackageReference Include="System.IO.Ports" Version="11.0.0-preview.4.26230.115" />
   </ItemGroup>
 
 </Project>
diff --git a/Model/Model.csproj b/Model/Model.csproj
index 531df3d..8c6d3f3 100644
--- a/Model/Model.csproj
+++ b/Model/Model.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="SqlSugarCore" Version="5.1.4.215-preview13" />
-	<PackageReference Include="System.IO.Ports" Version="11.0.0-preview.4.26230.115" />
+	  <PackageReference Include="System.IO.Ports" Version="8.0.0" />
   </ItemGroup>
 
 </Project>