diff --git a/Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs b/Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs
index 7e6f663..e908265 100644
--- a/Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs
+++ b/Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs
@@ -130,7 +130,7 @@ namespace MQTTnet.Implementations
 
             foreach (var certificate in options.TlsOptions.Certificates)
             {
-                certificates.Add(new X509Certificate(certificate));
+                certificates.Add(new X509Certificate2(certificate));
             }
 
             return certificates;
@@ -152,4 +152,4 @@ namespace MQTTnet.Implementations
 
     }
 }
-#endif
\ No newline at end of file
+#endif
diff --git a/README.md b/README.md
index 5d3e186..b085836 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ MQTTnet is a high performance .NET library for MQTT based communication. It prov
 * .NET Standard 1.3+
 * .NET Core 1.1+
 * .NET Core App 1.1+
-* Universal Windows Platform (UWP) 10.0.10240+ (x86, x64, ARM, AnyCPU, WIndows IoT Core)
+* Universal Windows Platform (UWP) 10.0.10240+ (x86, x64, ARM, AnyCPU, Windows 10 IoT Core)
 * .NET Framework 4.5.2+ (x86, x64, AnyCPU)
 * Mono 5.2+
 * Xamarin.Android 7.5+