diff --git a/Shadowsocks.CLI/Shadowsocks.CLI.csproj b/Shadowsocks.CLI/Shadowsocks.CLI.csproj
index e40c8074..75f859d9 100644
--- a/Shadowsocks.CLI/Shadowsocks.CLI.csproj
+++ b/Shadowsocks.CLI/Shadowsocks.CLI.csproj
@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.20574.7" />
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21109.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/nuget.config b/nuget.config
new file mode 100644
index 00000000..2b408dae
--- /dev/null
+++ b/nuget.config
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <!--To inherit the global NuGet package sources remove the <clear/> line below -->
+    <clear />
+    <add key="nuget" value="https://api.nuget.org/v3/index.json" />
+    <add key="System.CommandLine Nightly" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json" />
+  </packageSources>
+</configuration>