diff --git a/README.md b/README.md
index e2a542c..660dc30 100644
--- a/README.md
+++ b/README.md
@@ -683,6 +683,7 @@ comprehensive and high-level, you may want the Web Frameworks section.
   [``MIT``][MIT]
 * [oSip][179] - SIP implementation without additional
   dependencies. [``LGPL-2.1-or-later``][LGPL-2.1-or-later]
+* [silgy][579] - Asynchronous HTTP(S) engine for C/C++ projects. [``MIT``][MIT]
 * [socket99][203] - C99 wrapper for the BSD sockets API. [``ISC``][ISC]
 * [twitc][237] - Mini library for interacting with the Twitter OAuth API. [``MIT``][MIT]
 * [uriparser][100] - Strictly RFC 3986-compliant URI parsing and handling library.
@@ -1055,6 +1056,7 @@ A 'catch-all' category for anything that doesn't fit well anywhere else.
   interface. [``BSD-3-Clause``][BSD-3-Clause]
 * [nope.c][209] - Ultra-light software platform for scalable server-side and
   networking applications (think node.js for C programmers). [``GPL-2.0-only``][GPL-2.0-only]
+* [obj.h][580] - A single-header supports OOP in pure C. [``MIT``][MIT]
 * [parg][274] - A single-file reimplementation of ``getopt`` with better defaults.
   [``CC0-1.0``][CC0-1.0]
 * [pbc][236] - Protocol buffers library. [``MIT``][MIT]
@@ -1715,3 +1717,5 @@ support for C.
 [576]: https://github.com/ianh/owl
 [577]: https://github.com/zhaojh329/libuhttpd
 [578]: http://zinjai.sourceforge.net/
+[579]: https://github.com/silgy/silgy
+[580]: https://github.com/small-c/obj.h