diff --git a/ActivityAPI/packages.config b/ActivityAPI/packages.config
index 1c85be3..30f19c2 100644
--- a/ActivityAPI/packages.config
+++ b/ActivityAPI/packages.config
@@ -13,7 +13,7 @@
   <package id="Microsoft.AspNet.WebApi.WebHost.zh-Hant" version="5.2.7" targetFramework="net461" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net461" />
   <package id="Modernizr" version="2.8.3" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="Unity.Abstractions" version="3.3.1" targetFramework="net461" />
   <package id="Unity.AspNet.WebApi" version="5.0.15" targetFramework="net461" />
   <package id="Unity.Container" version="5.8.10" targetFramework="net461" />