diff --git a/NuGet.Config b/NuGet.Config
index 6aeb5a2a..e376a2f8 100755
--- a/NuGet.Config
+++ b/NuGet.Config
@@ -2,6 +2,6 @@
 <configuration>
     <packageSources>
         <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3"/>
-        <add key="aelf" value="https://www.myget.org/F/aelf-project-dev/api/v3/index.json"/>
+        <add key="aelf" value="https://www.myget.org/F/aelf-project-dev/api/v3/index.json" protocolVersion="3"/>
     </packageSources>
 </configuration>
\ No newline at end of file