Merge pull request #219021 from pritamso/Broken-link-fix-sunilagarwal

Broken link fixed

Author: prmerger-automator[bot]

articles/postgresql/single-server/concepts-connection-libraries.md

@@ -30,7 +30,7 @@ Most language client libraries used to connect to PostgreSQL server are external
 | C\#/ .NET | [Npgsql](https://www.npgsql.org/) | ADO.NET Data Provider | [Download](https://dotnet.microsoft.com/download) |
 | ODBC | [psqlODBC](https://odbc.postgresql.org/) | ODBC Driver | [Download](https://www.postgresql.org/ftp/odbc/versions/) |
 | C | [libpq](https://www.postgresql.org/docs/9.6/static/libpq.html) | Primary C language interface | Included |
-| C++ | [libpqxx](http://pqxx.org/) | New-style C++ interface | [Download](http://pqxx.org/download/software/) |
+| C++ | [libpqxx](http://pqxx.org/) | New-style C++ interface | [Download](https://pqxx.org/libpqxx/) |
 
 ## Next steps