diff --git a/src/EpiEvents.Core.Tests/packages.config b/src/EpiEvents.Core.Tests/packages.config
index 4a1cc12..61288f0 100644
--- a/src/EpiEvents.Core.Tests/packages.config
+++ b/src/EpiEvents.Core.Tests/packages.config
@@ -24,7 +24,7 @@
   <package id="System.Data.SqlClient" version="4.4.0" targetFramework="net461" />
   <package id="System.Reflection.Emit" version="4.3.0" targetFramework="net461" />
   <package id="System.Security.AccessControl" version="4.4.0" targetFramework="net461" />
-  <package id="System.Security.Cryptography.Xml" version="4.4.0" targetFramework="net461" />
+  <package id="System.Security.Cryptography.Xml" version="4.7.1" targetFramework="net461" />
   <package id="System.Security.Permissions" version="4.4.0" targetFramework="net461" />
   <package id="System.Security.Principal.Windows" version="4.4.0" targetFramework="net461" />
   <package id="System.Threading.AccessControl" version="4.4.0" targetFramework="net461" />