diff --git a/src/Microsoft.OpenApi/Models/OpenApiDocument.cs b/src/Microsoft.OpenApi/Models/OpenApiDocument.cs
index 0f15a27d9..42273f729 100644
--- a/src/Microsoft.OpenApi/Models/OpenApiDocument.cs
+++ b/src/Microsoft.OpenApi/Models/OpenApiDocument.cs
@@ -544,6 +544,9 @@ private static string ConvertByteArrayToString(byte[] hash)
         {
             // Build the final string by converting each byte
             // into hex and appending it to a StringBuilder
+#if NET5_0_OR_GREATER
+            return Convert.ToHexString(hash);
+#else
             var sb = new StringBuilder();
             for (var i = 0; i < hash.Length; i++)
             {
@@ -551,6 +554,7 @@ private static string ConvertByteArrayToString(byte[] hash)
             }
 
             return sb.ToString();
+#endif
         }
 
         /// <summary>