diff --git a/src/CalendarSyncPlus/CalendarSyncPlus.Services/packages.config b/src/CalendarSyncPlus/CalendarSyncPlus.Services/packages.config
index 9406dbe..42261f8 100644
--- a/src/CalendarSyncPlus/CalendarSyncPlus.Services/packages.config
+++ b/src/CalendarSyncPlus/CalendarSyncPlus.Services/packages.config
@@ -4,7 +4,7 @@
   <package id="log4net" version="2.0.8" targetFramework="net45" />
   <package id="MahApps.Metro" version="1.6.5" targetFramework="net461" />
   <package id="Microsoft.AspNet.SignalR.Client" version="2.3.0" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="System.Waf.Core" version="4.2.0" targetFramework="net461" />
   <package id="System.Waf.Wpf" version="4.2.0" targetFramework="net461" />
   <package id="waf" version="4.2.1" targetFramework="net461" />