diff --git a/src/AElf.Concurrency.Worker/AElf.Concurrency.Worker.csproj b/src/AElf.Concurrency.Worker/AElf.Concurrency.Worker.csproj
index aea21ebcea..0124790f0a 100644
--- a/src/AElf.Concurrency.Worker/AElf.Concurrency.Worker.csproj
+++ b/src/AElf.Concurrency.Worker/AElf.Concurrency.Worker.csproj
@@ -9,7 +9,7 @@
         <PackageReference Include="Akka.Cluster" Version="1.3.12"/>
         <PackageReference Include="Akka.Cluster.Tools" Version="1.3.12"/>
         <PackageReference Include="CommandLineParser" Version="2.4.3"/>
-        <PackageReference Include="Google.Protobuf" Version="3.7.0"/>
+        <PackageReference Include="Google.Protobuf" Version="3.15.0"/>
         <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0"/>
         <PackageReference Include="NetEscapades.Extensions.Logging.RollingFile" Version="1.0.1"/>
         <PackageReference Include="Newtonsoft.Json" Version="12.0.1"/>
diff --git a/src/AElf.Types/AElf.Types.csproj b/src/AElf.Types/AElf.Types.csproj
index 7c99eb9e85..d1cf3b8916 100644
--- a/src/AElf.Types/AElf.Types.csproj
+++ b/src/AElf.Types/AElf.Types.csproj
@@ -8,7 +8,7 @@
         <Description>Basic types for AElf.</Description>
     </PropertyGroup>
     <ItemGroup>
-        <PackageReference Include="Google.Protobuf" Version="3.13.0" />
+        <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     </ItemGroup>
     <ItemGroup>
         <CommonMessage Include="..\..\protobuf\aelf\core.proto">