diff --git a/Src/Newtonsoft.Json/Utilities/LateBoundReflectionDelegateFactory.cs b/Src/Newtonsoft.Json/Utilities/LateBoundReflectionDelegateFactory.cs
index 2ebf601b..51876ada 100644
--- a/Src/Newtonsoft.Json/Utilities/LateBoundReflectionDelegateFactory.cs
+++ b/Src/Newtonsoft.Json/Utilities/LateBoundReflectionDelegateFactory.cs
@@ -48,7 +48,15 @@ namespace Newtonsoft.Json.Utilities
 
             ConstructorInfo c = method as ConstructorInfo;
             if (c != null)
-                return c.Invoke;
+            {
+                // don't convert to method group to avoid medium trust issues
+                // https://github.com/JamesNK/Newtonsoft.Json/issues/476
+                return a =>
+                {
+                    object[] args = a;
+                    return c.Invoke(args);
+                };
+            }
 
             return a => method.Invoke(null, a);
         }