diff --git a/HeuristicLab.Services.WebApp.Maintenance/3.3/HeuristicLab.Services.WebApp.Maintenance-3.3.csproj b/HeuristicLab.Services.WebApp.Maintenance/3.3/HeuristicLab.Services.WebApp.Maintenance-3.3.csproj
index a11b2c62..e95d739b 100644
--- a/HeuristicLab.Services.WebApp.Maintenance/3.3/HeuristicLab.Services.WebApp.Maintenance-3.3.csproj
+++ b/HeuristicLab.Services.WebApp.Maintenance/3.3/HeuristicLab.Services.WebApp.Maintenance-3.3.csproj
@@ -165,7 +165,7 @@
       <Version>5.2.3</Version>
     </PackageReference>
     <PackageReference Include="Newtonsoft.Json">
-      <Version>7.0.1</Version>
+      <Version>13.0.1</Version>
     </PackageReference>
   </ItemGroup>
   <ItemGroup>
diff --git a/HeuristicLab.Services.WebApp.Maintenance/3.3/packages.config b/HeuristicLab.Services.WebApp.Maintenance/3.3/packages.config
index 6f37fe0f..654f92f7 100644
--- a/HeuristicLab.Services.WebApp.Maintenance/3.3/packages.config
+++ b/HeuristicLab.Services.WebApp.Maintenance/3.3/packages.config
@@ -4,5 +4,5 @@
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file