diff --git a/src/AasxCsharpLibrary/AasxCsharpLibrary.csproj b/src/AasxCsharpLibrary/AasxCsharpLibrary.csproj
index bdd4dcb33..a3c13cd20 100644
--- a/src/AasxCsharpLibrary/AasxCsharpLibrary.csproj
+++ b/src/AasxCsharpLibrary/AasxCsharpLibrary.csproj
@@ -38,7 +38,7 @@
     <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Namotion.Reflection" Version="1.0.13" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="NJsonSchema" Version="10.1.26" />
     <PackageReference Include="System.ComponentModel.Composition" Version="4.7.0" />
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
diff --git a/src/AasxIntegrationBase/AasxIntegrationBase.csproj b/src/AasxIntegrationBase/AasxIntegrationBase.csproj
index 52e2b9cf6..12d822574 100644
--- a/src/AasxIntegrationBase/AasxIntegrationBase.csproj
+++ b/src/AasxIntegrationBase/AasxIntegrationBase.csproj
@@ -12,6 +12,6 @@
     <ProjectReference Include="..\AnyUi\AnyUi.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 </Project>
diff --git a/src/AasxUaNetServer/AasxUaNetServer.csproj b/src/AasxUaNetServer/AasxUaNetServer.csproj
index e14a8c17d..54b5e9571 100644
--- a/src/AasxUaNetServer/AasxUaNetServer.csproj
+++ b/src/AasxUaNetServer/AasxUaNetServer.csproj
@@ -9,7 +9,7 @@
 	<ErrorOnDuplicatePublishOutputFiles>false</ErrorOnDuplicatePublishOutputFiles>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="OPCFoundation.NetStandard.Opc.Ua" Version="1.4.360.33" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/AasxUaNetServer/packages.config b/src/AasxUaNetServer/packages.config
index a7f6b5af0..0cd7a63fd 100644
--- a/src/AasxUaNetServer/packages.config
+++ b/src/AasxUaNetServer/packages.config
@@ -29,7 +29,7 @@
   <package id="Microsoft.NETCore.Platforms" version="1.1.0" targetFramework="net461" />
   <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="net461" />
   <package id="NETStandard.Library" version="1.6.1" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="OPCFoundation.NetStandard.Opc.Ua" version="1.4.360.33" targetFramework="net461" />
   <package id="Portable.BouncyCastle" version="1.8.4" targetFramework="net461" />
   <package id="System.AppContext" version="4.3.0" targetFramework="net461" />