diff --git a/Source/Own.Blockchain.Public.Core.Tests/Own.Blockchain.Public.Core.Tests.fsproj b/Source/Own.Blockchain.Public.Core.Tests/Own.Blockchain.Public.Core.Tests.fsproj
index 4be5326..874cbae 100644
--- a/Source/Own.Blockchain.Public.Core.Tests/Own.Blockchain.Public.Core.Tests.fsproj
+++ b/Source/Own.Blockchain.Public.Core.Tests/Own.Blockchain.Public.Core.Tests.fsproj
@@ -33,7 +33,7 @@
         <PackageReference Include="xunit" Version="2.4.1" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
         <PackageReference Include="Unquote" Version="4.0.0" />
-        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     </ItemGroup>
 
 </Project>
diff --git a/Source/Own.Blockchain.Public.Core/Own.Blockchain.Public.Core.fsproj b/Source/Own.Blockchain.Public.Core/Own.Blockchain.Public.Core.fsproj
index dd280f6..352266c 100644
--- a/Source/Own.Blockchain.Public.Core/Own.Blockchain.Public.Core.fsproj
+++ b/Source/Own.Blockchain.Public.Core/Own.Blockchain.Public.Core.fsproj
@@ -29,7 +29,7 @@
 
     <ItemGroup>
         <PackageReference Include="MessagePack" Version="1.9.11" />
-        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     </ItemGroup>
 
 </Project>