diff --git a/src/bctklib/bctklib.csproj b/src/bctklib/bctklib.csproj
index b414458..9e7c6a9 100644
--- a/src/bctklib/bctklib.csproj
+++ b/src/bctklib/bctklib.csproj
@@ -22,7 +22,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <NeoVersion>3.3.1</NeoVersion>
+    <NeoVersion>3.4.0</NeoVersion>
     <!-- <NeoVersion>local</NeoVersion> -->
     <NeoMonorepoPath>..\..\..\..\official\3neo-monorepo</NeoMonorepoPath>
   </PropertyGroup>
@@ -57,8 +57,8 @@
     </When>
     <Otherwise>
       <ItemGroup>
-        <PackageReference Include="Neo.Cryptography.MPT" Version="3.4.0" />
-        <PackageReference Include="Neo.Network.RPC.RpcClient" Version="3.4.0" />
+        <PackageReference Include="Neo.Cryptography.MPT" Version="$(NeoVersion)" />
+        <PackageReference Include="Neo.Network.RPC.RpcClient" Version="$(NeoVersion)" />
       </ItemGroup>
     </Otherwise>
   </Choose>