diff --git a/src/Mpgp.DataAccess/Mpgp.DataAccess.csproj b/src/Mpgp.DataAccess/Mpgp.DataAccess.csproj
index 530de40..c5aa7b3 100644
--- a/src/Mpgp.DataAccess/Mpgp.DataAccess.csproj
+++ b/src/Mpgp.DataAccess/Mpgp.DataAccess.csproj
@@ -29,7 +29,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.1.0-preview1-final" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.9" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.9" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="5.0.0" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="3.1.4" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL.Design" Version="2.0.0-preview1" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
diff --git a/src/Mpgp.WebSocketServer/Mpgp.WebSocketServer.csproj b/src/Mpgp.WebSocketServer/Mpgp.WebSocketServer.csproj
index 6a2845f..87e2bf7 100644
--- a/src/Mpgp.WebSocketServer/Mpgp.WebSocketServer.csproj
+++ b/src/Mpgp.WebSocketServer/Mpgp.WebSocketServer.csproj
@@ -18,7 +18,7 @@
     <Analyzer Include="..\..\libs\microsoft.codeanalysis.analyzers\1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.9" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.9" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="3.1.9" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />