diff --git a/README.md b/README.md
index 05635c7..2f8d23c 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,12 @@ features](http://doc.crates.io/manifest.html#the-features-section). They are:
   allows hooks into SQLite's tracing and profiling APIs.
 * [`blob`](http://jgallagher.github.io/rusqlite/rusqlite/blob/index.html)
   gives `std::io::{Read, Write, Seek}` access to SQL BLOBs.
+* `chrono` implements [`FromSql`](http://jgallagher.github.io/rusqlite/rusqlite/types/trait.FromSql.html)
+  and [`ToSql`](http://jgallagher.github.io/rusqlite/rusqlite/types/trait.ToSql.html) for various
+  types from the [`chrono` crate](https://crates.io/crates/chrono).
+* `serde_json` implements [`FromSql`](http://jgallagher.github.io/rusqlite/rusqlite/types/trait.FromSql.html)
+  and [`ToSql`](http://jgallagher.github.io/rusqlite/rusqlite/types/trait.ToSql.html) for the
+  `Value` type from the [`serde_json` crate](https://crates.io/crates/serde_json).
 
 ## Author