diff --git a/Line_Login_Example/packages.config b/Line_Login_Example/packages.config
index 6782b82..eff4936 100644
--- a/Line_Login_Example/packages.config
+++ b/Line_Login_Example/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.IdentityModel.Logging" version="5.4.0" targetFramework="net461" />
   <package id="Microsoft.IdentityModel.Tokens" version="5.4.0" targetFramework="net461" />
   <package id="Microsoft.Net.Compilers" version="3.0.0" targetFramework="net452" developmentDependency="true" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net452" />
   <package id="popper.js" version="1.14.3" targetFramework="net452" />
   <package id="System.IdentityModel.Tokens.Jwt" version="5.4.0" targetFramework="net461" />
   <package id="toastr" version="2.1.1" targetFramework="net452" />