diff --git a/Chapter9_10_11_Entity_Framework/Exercise1/Lottery.Tests/packages.config b/Chapter9_10_11_Entity_Framework/Exercise1/Lottery.Tests/packages.config
index 069f589..1b079a4 100644
--- a/Chapter9_10_11_Entity_Framework/Exercise1/Lottery.Tests/packages.config
+++ b/Chapter9_10_11_Entity_Framework/Exercise1/Lottery.Tests/packages.config
@@ -39,7 +39,7 @@
   <package id="Microsoft.IdentityModel.Protocols.OpenIdConnect" version="5.5.0" targetFramework="net472" />
   <package id="Microsoft.IdentityModel.Tokens" version="5.5.0" targetFramework="net472" />
   <package id="Moq" version="4.15.2" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net472" />
   <package id="NUnit" version="3.12.0" targetFramework="net472" />
   <package id="NUnit3TestAdapter" version="3.16.1" targetFramework="net472" developmentDependency="true" />
   <package id="SQLitePCLRaw.bundle_e_sqlite3" version="2.0.7" targetFramework="net472" />