diff --git a/src/AElf.Sdk.CSharp/AElf.Sdk.CSharp.csproj b/src/AElf.Sdk.CSharp/AElf.Sdk.CSharp.csproj
index c8b1ef5181..b38a4ba3e2 100644
--- a/src/AElf.Sdk.CSharp/AElf.Sdk.CSharp.csproj
+++ b/src/AElf.Sdk.CSharp/AElf.Sdk.CSharp.csproj
@@ -16,7 +16,9 @@
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="Rebex.Elliptic.Ed25519" Version="1.2.1" />
+        <PackageReference Include="Rebex.Elliptic.Ed25519" Version="1.2.1" >
+            <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
     </ItemGroup>
 
 </Project>