diff --git a/ClrHttpRequest/clr_http_request.cs b/ClrHttpRequest/clr_http_request.cs
index fc7bc1c..b35d0ac 100644
--- a/ClrHttpRequest/clr_http_request.cs
+++ b/ClrHttpRequest/clr_http_request.cs
@@ -157,7 +157,7 @@ public static SqlXml clr_http_request(string requestMethod, string url, string p
             if (requestMethod.ToUpper() != "GET" && !string.IsNullOrWhiteSpace(parameters))
             {
                 // Convert to byte array
-                var parameterData = Encoding.ASCII.GetBytes(parameters);
+                var parameterData = Encoding.UTF8.GetBytes(parameters);
 
                 // Set content info
                 if (!contentLengthSetFromHeaders)