diff --git a/HeuristicLab.Services.WebApp/3.3/packages.config b/HeuristicLab.Services.WebApp/3.3/packages.config
index 7445c346..b537cf50 100644
--- a/HeuristicLab.Services.WebApp/3.3/packages.config
+++ b/HeuristicLab.Services.WebApp/3.3/packages.config
@@ -10,6 +10,6 @@
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="WebGrease" version="1.6.0" targetFramework="net45" />
 </packages>
\ No newline at end of file