diff --git a/tests/EpiCategories.SandboxApp/packages.config b/tests/EpiCategories.SandboxApp/packages.config
index 25daa1c..0664105 100644
--- a/tests/EpiCategories.SandboxApp/packages.config
+++ b/tests/EpiCategories.SandboxApp/packages.config
@@ -39,7 +39,7 @@
   <package id="System.Reflection.Emit" version="4.3.0" targetFramework="net48" />
   <package id="System.Reflection.Emit.Lightweight" version="4.3.0" targetFramework="net48" />
   <package id="System.Security.AccessControl" version="4.4.0" targetFramework="net48" />
-  <package id="System.Security.Cryptography.Xml" version="4.4.2" targetFramework="net48" />
+  <package id="System.Security.Cryptography.Xml" version="4.7.1" targetFramework="net48" />
   <package id="System.Security.Permissions" version="4.4.0" targetFramework="net48" />
   <package id="System.Security.Principal.Windows" version="4.4.0" targetFramework="net48" />
   <package id="System.Threading.AccessControl" version="4.4.0" targetFramework="net48" />