diff --git a/README.md b/README.md
index 64b6d6df..ff44c6cf 100644
--- a/README.md
+++ b/README.md
@@ -1271,6 +1271,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
     * [guesslanguage](https://github.com/endeveit/guesslanguage) - Functions to determine the natural language of a unicode text.
     * [inject](https://github.com/facebookgo/inject) - Package inject provides a reflect based injector.
     * [mxj](https://github.com/clbanning/mxj) - Encode / decode XML as JSON or map[string]interface{}; extract values with dot-notation paths and wildcards. Replaces x2j and j2x packages.
+    * [sdp](https://github.com/gortc/sdp) - SDP: Session Description Protocol [[RFC 4566](https://tools.ietf.org/html/rfc4566)].
     * [sh](https://github.com/mvdan/sh) - Shell parser and formatter.
     * [slug](https://github.com/gosimple/slug) - URL-friendly slugify with multiple languages support.
     * [Slugify](https://github.com/avelino/slugify) - Go slugify application that handles string.