diff --git a/NDCTodo/iOSTodo/packages.config b/NDCTodo/iOSTodo/packages.config
index 1d8eb7d..8124e63 100644
--- a/NDCTodo/iOSTodo/packages.config
+++ b/NDCTodo/iOSTodo/packages.config
@@ -40,7 +40,7 @@
   <package id="System.Security.Cryptography.Algorithms" version="4.2.0" targetFramework="xamarinios10" />
   <package id="System.Security.Cryptography.Encoding" version="4.0.0" targetFramework="xamarinios10" />
   <package id="System.Security.Cryptography.Primitives" version="4.0.0" targetFramework="xamarinios10" />
-  <package id="System.Security.Cryptography.X509Certificates" version="4.1.0" targetFramework="xamarinios10" />
+  <package id="System.Security.Cryptography.X509Certificates" version="4.1.2" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding" version="4.0.11" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding.Extensions" version="4.0.11" targetFramework="xamarinios10" />
   <package id="System.Text.RegularExpressions" version="4.1.0" targetFramework="xamarinios10" />