1 files changed, 2 insertions, 0 deletions

diff --git a/README.md b/README.md
index 4e6c26e..7d66473 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@
 Use `make` to build a minimal test application, and `make test` to run
 the built-in tests.
 
+TODO: `hmac_sha3_{224,256,384,512}`
+
 [C11]: https://en.wikipedia.org/wiki/C11_(C_standard_revision)
   "ISO/IEC 9899:2011"
 [SHA-3]: https://en.wikipedia.org/wiki/SHA-3